The Academic Health Sciences Library and Serial Selection

BE Jo ANN BELL, Director

Health AfJairs LibrarYEast Carolina University

Greenville, North Carolina

ABSTRACT

A review of efforts to formulate basic medicaljournal lists and a report of a survey of subscriptionsheld in academic health science libraries is presented.The subscriptions held by thirty-seven libraries wereanalyzed to determine those held by 60-100% of thesample. A comparison of those titles subscribed to b)90-100% of the sample reveals that most of thesetitles appear in the lists formulated by other studies.

INTRODUCTION

THE most often heard lament of sciencelibrarians is the difficulty of dealing with theinformation explosion or as more properlydescribed from the librarian's point of view-the paper explosion. Today there are over50,000 scientific, medical, and technical jour-nals (1). Of this number approximately 2,200are indexed in Index Medicus (2) and 7,661 inBiological Abstracts (3). These figures illustratea major problem faced by librarians: Whichjournals are most useful, most important forinclusion in a health sciences collection?

Over the years, there have been numerousattempts to deal with this problem-to identifya core of important journals. The most recenteffort in this area has been described byGarfield, who has reported an analysis ofjournal citations. He reported that 152 journalsaccounted for 50% of all references analyzedand 767 journals accounted for 75% of allreferences analyzed (4).

While it is not the contention of this authorthat one single standard can be used to evaluatethe need to include a journal in a collection, Ido maintain that a consideration of severalfactors can assist the librarian in an analysis ofwhich journals should be included. The purposeof the present study was to review factorswhich have been considered in the past, to

consider current research and current practicereflected in journal subscriptions held, and topresent and compare findings of various evalua-tion studies.

HISTORICAL DEVELOPMENTS

In 1927 Gross and Gross used citationanalysis to determine the importance of aparticular journal. In their case a volume of theJournal of the American Chiemical Society wasused and references were tabulatvd to deter-mine the frequency with which a particularjournal was cited. They based their analysis onthree assumptions:

I. The more frequently a journal is cited themore useful it is

2. A journal or journals used in analysis ofcitations must represent the field

3. All journals analyzed are of equal impor-tance (5).

A similar analysis was performed by Jenkinsfor journals in the field of child guidance. Inthat study, references found in Chiild Develop-ment Abstract atnd Bibliography, Mental Hy-giene Bulletin and in ten journals recommendedby persons working in the field were analyzed(6). Citation analysis for the evaluation ofmedical journals was performed by Sherwood,who surveyed one year of the Journal of theA merican Medical Association. Although hissample reflected a limited data base he dis-covered that 70% of the articles cited appearedin fifty journals (7). In 1937, Hunt combinedthe use of citation analysis of references inimportant journals and journals borrowed foruse outside the library to formulate a list ofbasic biomedical periodicals (8).

Although the basic method of citationanalysis initiated by Gross and Gross waswidely used as exhibited by the studies cited,

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there were questions concerning the validity ofsuch a limited analysis. Estelle Brodman testedthe validity of the Gross and Gross method in astudy concerning physiology journals. Brodmanproposed that if a journal's importance can bereflected by the frequency with which it iscited then a list of journals designated byprofessionals in a field should approximate theresults obtained from analysis by the Gross andGross method. In this particular study, it wasfound there was little correlation between thelist of journals designated by the members ofthe Department of Physiology at the College ofPhysicians and Surgeons and a list resultingfrom citation analysis of the Annual Review ofPhysiology, the American Journal of Physiol-ogy, the Journal of Physiology, and PfliugersArchiv (9).

In 1946, William Postell tested the validity ofthe first assumption used by Gross and Grossby analyzing the use of physiology journalsrequested and borrowed at the Louisiana StateUniversity Medical Library. There was a highdegree of correlation between the ranking ofjournals by circulation and the ranking ofjournals by professionals in the College ofPhysicians and Surgeons as reported in theBrodman study. At the same time there wasvery low correlation between the use rankingand the citation ranking. Therefore, this studysupported the Brodman evaluation of the Grossand Gross method of joumal evaluation asinvalid (10).

However, the citation analysis method ofevaluating journal importance did not disappearin spite of the indictment by these two studies.Raisig, while confident that the citation anal-ysis was useful, noted that the method ofselection of the data base is important. Further-more he noted that the subjective selection of asingle journal to serve as the data base was thefactor which reduced the validity of the Grossand Gross study. Proceeding in his descriptionof sample selection, Raisig stressed the selectionof several journals weighing each so thatcitations analyzed would have equal statisticalvalue (11). At the same time, Raisig believedthat the frequency with which a journal is citedcan be used as an indicator of its significanceand that this significance should continue overa period of time. However, in order toovercome the limitations of the Gross andGross method, a broad data base from which

data is randomly selected must be used. In hisstudy the frequency of the publications isconsidered in relation to the frequency ofcitation to prevent a distortion of data. Heconsidered as a data base for determining thetotal possible citations the serials indexed inCurren t List of Medical Literature, 1951-1960.Only those serials published four or more timesa year were considered. The number of articlespublished was determined, and the serials weredivided by subject. Then random serials, issues,articles, and citations were analyzed. Therelative index of use was computed using thefollowing equation:

number of subsequent citations to articles x 100,000number of articles published

In spite of the careful design of Raisig's study,he stated that the results or method were notinfallible, but that he hoped the index ofsignificance compiled would be of use (1 2).

In 1963, Eugene Garfield discussed theimplications of citation indexing noting thatthis new method of indexing could give a widevariety of information not previously availableand that this information would include datawhich could be used to analyze journal impor-tance based on citation analysis (13). AsGarfield predicted in this earlier article such ananalysis has been done. The Institute forScientific Information has analyzed from thedata base of Science CitationZ Index referencespublished during the last quarter of 1969. Thedata were analyzed to produce three sets ofinformation:

1. Cumulation of all citations of the sametitle showing the number of times cited,

2. The frequency of citation for each article,and

3. Frequency of citation by journal in whichthe article appeared.

The analysis of these data has shown that agood journal collection need not be large, since50% of the references appeared in only 152journals. Garfield notes that citation analysisincluding data on the chronological distributionof citations can be useful in the selection ofjournals for subscription and the purchase ofbackfiles (14).

Besides these attempts to devise a systematicmethod for evaluating the mass of serialpublications there have been several relatively

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successful efforts to develop guides for thoseinvolved with the smaller medical library. In1965, Alfred Brandon issued the first edition ofhis Selected List of Books and Journals for theSmall Medical Library (1 5). This list wasdeveloped to provide a current comprehensivelist as a guide for selection for the smallhospital library. Then in 1969, Moll issued hislist of joumals for the small medical library.This list was based on a survey of physiciansand resulted in a list of forty-eight titles (16).Also in 1969 Stearns and Ratcliff issued theircompilation of titles needed to form a corelibrary for practitioners in community hospitals(17) and expanded the list in 1970 to form acore health science library (18). Both of theselists were formulated on the basis of titlesrecommended by specialists from across theUnited States.

Besides the use of citation analysis and therecommendations of subject specialists to de-vise lists of important serial titles, analysis ofcirculation records has been used. Only twosuch studies will be mentioned here. Stangl andKilgour analyzed circulation records for aone-year period at the Yale Medical Library.These data were analyzed to determine whoborrowed joumals and what type of journalthey borrowed. They concluded that there werecomplicated relationships among users andtitles, and they also identified thirty-eight titleswhich were used more than any others (19).David Crawford has presented his analysis ofjournal circulation in the year 1968 which notonly ranks the journals' titles, but also thecirculation in relation to publication date. Henoted that a few titles account for most of thecirculation (20).

This brief review of the efforts to evaluate ajournal's importance by one method or anotheremphasizes the librarian's continuing concernfor intelligent selection of journals. With this inmind and at the same time realizing the manyfactors which should be considered the follow-ing study was undertaken.

DESCRIPTION OF THE STUDY

The present study was undertaken to deter-mine what similarity exists in journal subscrip-tions held by academic health science librariesin the United States. A second purpose was toidentify a core of titles held by these libraries

and to compare these titles with titles identifiedon other basic lists or in other studies.The data base for the study was composed of

serial lists from selected libraries serving medi-cal schools approved by the Association ofAmerican Medical Colleges. The listing of theseschools as it appeared in the Education Numberof the Journal of the American MedicalAssociation was used (21). A random numbertable was used to select forty schools as asample. The sample size of forty was based on adecision that for a joumal to be included in thecore list at least 60% of the sample mustsubscribe to it. Based on this value, a sample offorty libraries would give a reliability quotientof 92%. There would be a 92% probability thata joumal held by only 50% of all health sciencelibraries would not be accepted. To determinethe representativeness of the selected sample, acomparison of the size of the sample librariesand all the medical school libraries was made.The size factor was considered since an abnor-mal number of very small or very large librarieswould skew the resulting data. The size of thelibraries given in the American Library Direc-tory (22) was used when the size for individuallibraries in an institution was given. If the datafor a medical library were not available fromthis source, data from the Directory of HealthScience Libraries in the United States (23) wereused. However, the limitations of these datashould be noted since there was a considerablelapse of time between compilation and publica-tion and between publication and use of thedata. The average size of the medical schoollibraries in the sample was 102,007 volumes;that of all medical school libraries was 107,504volumes. The standard deviation for all medicalschool libraries is 19,583 volumes. There is an80% probability that there will be a deviationfrom the true mean as large or larger than thedeviation of the sample from the entirepopulation.

While the selection of the sample librarieswas being made, letters were sent to librariesrequesting their subsciption lists. In this proc-ess, it was discovered that the National Libraryof Medicine's data base for SERLINE could beused for select libraries. The SERLINE print-out of serial holdings indicated holdings infor-mation for selected libraries in Regional Medi-cal Library Regions 2, 5, 6, 8, 9, and 11. Datafor libraries in other regions were not included

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or were included in such a way that they couldnot be used. As a result of the letters requestingsubscription information and of the SERLINEdata, information on subscriptions held bythirty-seven of the forty libraries was secured.

Therefore the data base for the core subscrip-tion study included information provided bysome libraries in the format of serial holdings orsubscription lists and for other libraries the dataused was the information provided in theSERLINE computer print-out. There are obvi-ous limits to the data base. Information on thetitles held by any library had to be determinedfrom one of these two sources. Some datamight not be current, i.e., some subscriptionsmight have been cancelled or new ones mighthave been added. Another problem was thedifference in scope of lists. Many libraries donot include all annual publications on serialrecords but catalog them as monographs. Thesame is true of proceedings, reports, andtransactions of various congresses, symposia,and meetings. Lastly, many libraries do notindicate as separate entries supplements tovarious joumals, and SERLINE does not in-clude indexes. It was decided to omit fromconsideration indexing and abstracting tools,supplements to joumals, and reports, proceed-ings, and transactions of special congresses,symposia, and meetings, since data reported onthese publications would not be reliable.

Each library was assigned an identificationsymbol using one union list as an initial sourceof titles to be considered: one index card wasmade for each title. On the card the symbol forthat library was noted. As succeeding lists werereviewed the symbol for the library holding aparticular title was recorded. A card was madefor each new title which appeared; afterone-half of the sample had been surveyed nonew title cards were made, since a title not heldby at least 60% of the sample would not beconsidered.

RESULTS

Once the data were recorded for all librariesin the sample, they were tabulated in thefollowing manner. Each title card was reviewedto determine if a minimum of 60% of thelibraries surveyed held subscriptions for thattitle. All titles held by fewer than 60% of thesample were eliminated from further considera-

tion since this had been the standard estab-lished when the sample size was chosen. Whenthe data were recorded on the title cards eachline had been used, so that by establishingpoints on a dummy card the number of librariesholding subscriptions to a given title could beeasily determined.The card for each title was reviewed and the

number of libraries holding a subscription tothat title was noted. The title and the numberof libraries subscribing were listed. Once thisprocess was completed for all titles, a chart wasmade to note the corresponding percent of thesample in relation to the number of librariessubscribing to a title. In each case the actualnumber of libraries for the limits was not awhole number and in each case the figure wasrounded off to the nearest whole number.When the data are considered it may appearthat the results for the 80 and 90% rangesmay have been affected. However, a recomputa-tion breaking the ranges at the midpoint, i.e.,32.5 as the upper limit of the 80% range and32.6 as the lower limit of the 90% range did notmaterially affect the results.

Eight hundred and fifty-two titles wereidentified for inclusion in a core list. Theminimum requirement was that at least 60% ofthe libraries surveyed subscribe for the title tobe included. An analysis of these 852 titlesrevealed that subscriptions to 149 were held by60-69% of the sample libraries; 171 were heldby 70-79% of the libraries; 163 by 80-89% ofthe libraries; 306 by 90-99% of the libraries;and 63 by 100% of the libraries.

COMPARISON

Besides the intention of identifying such a coreof titles this study proposed to compare resultsof this survey with surveys based on other typesof analysis. A particularly interesting compari-son might be made between journals identifiedin this survey for the 90 and 100% ranges andthose identified by Raisig, by Garfield, and by arecent MEDLINE study (24).The MEDLINE study consisted of a ranking

of journals by the number of times citations toarticles published in these journals were re-trieved from the MEDLINE data base. Theranking was based on off-line print-outs byMEDLINE Centers over a three-month period.Such an analysis due to the placement of early

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MEDLINE centers in large medical centerlibraries would reflect a research orientation. Atthe same time, it represents a kind of use studyas opposed to a pure citation analysis, since thecitations analyzed were not all of those in theMEDLINE data base or even a random sampleof such titles. Instead, this analysis was basedon citations for topics requested throughMEDLINE.On the other hand, the Garfield and Raisig

studies were citation analysis based on ascientifically designed sampling technique.Therefore direct comparison between rank inone list and rank in another list would not beaccurate and indeed there is little direct ranksimilarity. However, a general comparison todetermine similarity in titles identified, i.e.,what percent of the titles appeared on all lists,can be made. For the sake of this comparisonthe first 1 52 titles on the Raisig list, in theMEDLINE analysis, and the Garfield studywere compared.The results of the comparison can be seen in

Table 1. From this table, one can see that alittle less than one-fourth of the titles on anyone list appeared on the other lists. Further-more, almost one-half of the titles on any onelist did not appear on any other list. Thereforeit must be concluded that there is very littlesimilarity in the results of the various studies.In drawing this conclusion the time lapsebetween the Raisig and the Garfield study mustbe noted. Furthermore, the Garfield studyincluded a larger data base and many of thetitles included on the Garfield list are con-cerned with the physical, not the biologicalsciences and could not be expected to be on theRaisig or MEDLINE lists. As a matter of fact,

TABLE 1COMPARISON OF SURVEY RESULTS

GARFIELD (G) MEDLINE (M) RAISIG (R)

No.of

No.of

List(s) Titles List(s) Titles List(s) Titles

G only 99 M only 72 R only 67M,G,R 30 M,G,R 30 M,G,R 30G and R 14 M and R 41 R and M 41GandM 9 MandG 9 RandG 14

152 152 152

an analysis of the Garfield list reveals thatapproximately sixty of the titles are notbiomedical in nature and probably would notbe in a basic health science collection.A comparison of titles identified in the core

journal list study with titles identified in theother three studies was made. Except for theGarfield study whose special characteristic ofnon-biomedical titles has already been men-tioned, there is a certain amount of uniformityin the resulting distribution. For titles on all thelists except Garfield, a majority of the titleswere in the 90-100% category of the corejournal study.

CONCLUSION

It is not accurate to assume that thecompilation of a list of serial titles by analysisof any one factor can result in a core collection.However, by considering the results of severalstudies and the needs of a given institution andits users, one can compile a list for a givenlibrary. This particular study has resulted in thecompilation of a core list of titles subscribed toby health science libraries serving medicalschools. List 1 is a compilation of titlessubscribed to by 90-100% of the librariessurveyed. A list of titles subscribed to by60-100% of the libraries will be available uponrequest.The core list is not seen as a definitive guide

but as a source of information on which joumalsubscriptions are widely held. Combined withinformation from other surveys and studies, thehealth science librarian will have informationon which to base subscription decisions. Par-ticularly useful now would be a carefullydesigned use study to analyze and compare usefor a broad sample of health science libraries.Such a study would yield valuable infornationfor journal subscription decisions.

REFERENCES

1. GARFIELD, E. Citation analysis as a tool injournal evaluation. Science 178: 471-479, Nov.3, 1972.

2. NATIONAL LIBRARY OF MEDICINE. NationalLibrary of Medicine Current Catalog. Washing-ton, 1972.

3. BIOSCIENCE INFORMATION SERVICE. Biosis1972 List of Serials. Philadelphia, 1972.

4. GARFIELD. Loc. cit.5. GROSS, P. L. K., and GROSS, E. M. College

libraries and chemical education. Science 66:385-389, Oct. 28, 1927.

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JO ANN BELL

6. JENKINS, R. L. Periodicals for child-guidanceclinics. Mental Hygiene 16: 624-630, Oct.1 932.

7. SHERWOOD, K. K. Relative value of medicalmagazines. Northwest Med. 31: 273-276, June1932.

8. HUNT, J. W. Periodicals for the small bio-medicaland clinical library. Libr. Q 7: 121-40, 1937.

9. BRODMAN, Estelle. Choosing physiology jour-nals. Bull. Med. Libr. Assoc. 32: 479-483, Oct.1944.

10. POSTELL, W. D. Further comments on themathematical analysis of evaluating scientificjournals. Bull. Med. Libr. Assoc. 34: 107-109,Apr. 1946.

11. RAISIG, L. M. Statistical bibliography in thehealth sciences. Bull. Med. Libr. Assoc. 50:450-461, July 1962.

12. RAISIG, L. M. World biomedical journals,1951-1960. Bull. Med. Libr. Assoc. 54:108-125, Apr. 1966.

13. GARFIELD, E., and SHER, I. H. New factors inthe evaluation of scientific literature throughcitation indexing. Am. Doc. 14: 195-201, 1963.

14. GARFIELD. Op. cit., p. 477.15. BRANDON, A. N. Selected list of books and

journals for the small medical library. Bull.Med. Libr. Assoc. 53: 329-364, July 1965.

16. MOLL, W. Basic journal list for small hospitallibraries. Bull. Med. Libr. Assoc. 57: 267-272,July 1969.

17. STEARNS, N. S., and RATCLIFF, W. W. A coremedical library for practitioners in communityhospitals. N. Engl. J. Med. 280: 474 -480, Feb.27, 1969.

18. STEARNS, N. S., and RATCLIFF, W. W. Anintegrated health science core library for physi-cians, nurses and allied health practitioners incommunity hospitals. N. Engl. J. Med. 283:1489-1497, Dec. 31, 1970.

19. STANGL, P., and KILGOUR, F. G. Analysis ofrecorded biomedical book and journal use inthe Yale Medical Library. Bull. Med. Libr.Assoc. 55: 290-315, July 1967.

20. CRAWFORD, D. S. Periodical usage. Bull. Med.Libr. Assoc. 59: 516-517, July 1971.

21. Approved medical schools and schools of basicmedical sciences. JAMA 222: 966-967, Nov. 20,1972.

22. AMERICAN LIBRARY DIRECTORY. 28th ed.New York, Bowker, 1972.

23. DIRECTORY OF HEALTH SCIENCE LI-BRARIES IN THE UNITED STATES, 1969.Chicago, American Medical Association, 1970.

24. An accumulation of citations retrieved in off-lineprint-outs requested by MEDLINE centers overa three-month period. Supplied by the NationalLibrary of Medicine.

LIST 1

Acta AnatomicaActa Anaesthesiologica Scandinavica

Acta CardiologicaActa Chirurgica ScandinavicaActa CytologicaActa Dermato-VenereologicaActa EndocrinologicaActa HaematologicaActa Neurologica ScandinavicaActa Obstetricia et Gynecologica ScandinavicaActa OphthalmologicaActa Orthopaedica ScandinavicaActa Oto-LaryngologicaActa Paediatrica ScandinavicaActa Pharmacologica et ToxicologicaActa Physiologica ScandinavicaActa Psychiatrica ScandinavicaActa Radiologica; DiagnosisActa Radiologica; Therapy, Physics, BiologyAdvances in Biological and Medical PhysicsAdvances in Cancer ReasearchAdvances in Clinical ChemistryAdvances in Enzyme RegulationAdvances in ImmunologyAdvances in Internal MedicineAdvances in Lipid ResearchAdvances in Metabolic DisordersAdvances in PediatricsAdvances in SurgeryAdvances in Virus ResearchAerospace MedicineAmerican Family PhysicianAmerican Heart JoumalAmerican Joumal of AnatomyAmerican Journal of CardiologyAmerican Jourmal of Clinical NutritionAmerican Joumal of Clinical PathologyAmerican Journal of Digestive DiseasesAmerican Joumal of Diseases of ChildrenAmerican Joumal of EpidemiologyAmerican Joumal of GastroenterologyAmerican Joumal of Human GeneticsAmerican Joumal of the Medical SciencesAmerican Joumal of Medical TechnologyAmerican Joumal of MedicineAmerican Joumal of Mental DeficiencyAmerican Joumal of NursingAmerican Journal of Obstetrics and Gynecol-

ogyAmerican Joumal of Occupational TherapyAmerican Joumal of OphthalmologyAmerican Joumal of OrthopsychiatryAmerican Joumal of PathologyAmerican Joumal of Physical MedicineAmerican Joumal of Physiology

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American Journal of ProctologyAmerican Journal of PsychiatryAmerican Journal of PsychotherapyAmerican Journal of Public HealthAmerican Journal of Roentgenology, Radium

Therapy and Nuclear MedicineAmerican Journal of Tropical Medicine and

HygieneAmerican Joumal of Veterinary MedicineAmerican Review of Respiratory DiseaseAmerican ScientistAmerican SurgeonAnaesthesiaAnalytical BiochemistryAnatomical RecordAnesthesia and Analgesia; Current ResearchesAnesthesiologyAngiologyAnnales del'Institut PasteurAnnals of AllergyAnnals of Human GeneticsAnnals of Internal MedicineAnnals of the New York Academy of SciencesAnnals of Otology, Rhinology and LaryngologyAnnals of the Rheumatic DiseasesAnnals of SurgeryAnnals of Thoracic SurgeryAnnals of Tropical Medicine and ParasitologyAnnual Review of BiochemistryAnnual Review of MedicineAnnual Review of MicrobiologyAnnual Review of PharmacologyAnnual Review of PhysiologyApplied MicrobiologyArchives of Biochemistry and BiophysicsArchives of DermatologyArchives of Disease in ChildhoodArchives of Environmental HealthArchives of General PsychiatryArchives of Internal MedicineArchives Internationales de Pharmacodynamie

et de TherapieArchives of NeurologyArchives of OphthalmologyArchives of OtolaryngologyArchives of PathologyArchives of Physical Medicine and Rehabilita-

tionArchives of SurgeryArthritis and RheumatismBacteriological ReviewsBiochemical and Biophysical Research Commu-

nications

Biochemical JournalBiochemical MedicineBiochemical PharmacologyBiochemistry (Am. Chem. Society)Biochemistry (N. Y.)Biochimica et Biophysica ActaBiophysical JournalBlood; Journal of HematologyBrain; Journal of NeurologyBrain ResearchBritish Heart JournalBritish Journal of AnaesthesiaBritish Journal of CancerBritish Journal of Clinical PracticeBritish Journal of DermatologyBritish Journal of Diseases of the ChestBritish Journal of Experimental PathologyBritish Journal of HaematologyBritish Joumal of Industrial MedicineBritish Journal of Medical EducationBritish Joumal of NutritionBritish Journal of OphthalmologyBritish Joumal of Plastic SurgeryBritish Journal of Preventive and Social Medi-

cineBritish Journal of SurgeryBritish Journal of UrologyBritish Medical BulletinBritish Medical JournalBulletin of the American College of SurgeonsBulletin of the History of MedicineBulletin of the Los Angeles Neurological Socie-

tiesBulletin of the Medical Library AssociationBulletin of the Menninger ClinicBulletin of the New York Academy of MedicineBulletin of the Rheumatic DiseasesBulletin of the World Health OrganizationCA; Cancer Journal for CliniciansCalifornia MedicineCanadian Journal of MicrobiologyCanadian Journal of Physiology and Pharmacol-

ogyCanadian Journal of Public HealthCanadian Journal of SurgeryCanadian Medical Association JournalCancerCancer ResearchCardiovascular ResearchCirculation; Journal of the American Heart

AssociationCirculation ResearchCleveland Clinic Quarterly

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JO ANN BELL

Clinica Chimica ActaClinical ChemistryClinical MedicineClinical Obstetrics and GynecologyClinical Orthopaedics and Related ResearchClinical PediatricsClinical Pharmacology and TherapeuticsClinical RadiologyClinical ScienceClinical SymposiaCold Spring Harbor Symposia on Quantitative

BiologyComprehensive PsychiatryCurrent Therapeutic ResearchCytogenetics and Cell GeneticsDM; Disease-a-MonthDeutsche Medizinische WochenschriftDevelopmental Medicine and Child NeurologyDiabetesDigestionDiseases of the Colon and RectumDiseases of the Nervous SystemEndocrinologyEuropean Joumal of BiochemistryEuropean Joumal of PharmacologyExperientiaExperimental Brain ResearchExperimental Cell ResearchExperimental Medicine and SurgeryExperimental and Molecular PathologyExperimental NeurologyFDA PapersFEBS Letters; Federation of European Bio-

chemical SocietiesFederation Proceedings; Federation of Ameri-

can Societies for Experimental BiologyFertility and SterilityGastroenterologyGeneral and Comparative EndocrinologyGeriatricsGutHealth Services ReportsHenry Ford Hospital Medical JournalHospitalsImmunologyInternational Anesthesiology ClinicsInternational Archives of Allergy and AppliedImmunology

International Journal of Applied Radiation andIsotopes

International Joumal of CancerInternational Ophthalmology ClinicsInternational Review of Cytology

International Review of Experimental Pathol-ogy

International Review of NeurobiologyInternational SurgeryInvestigative OphthalmologyInvestigative RadiologyInvestigative UrologyJapanese Heart JoumalJohns Hopkins Medical JournalJournal of Allergy and Clinical ImmunologyJournal of the American Chemical SocietyJournal of the American Dietetic AssociationJournal of the American Geriatrics SocietyJournal of the American Medical AssociationJournal of the American Pharmaceutical Associ-

ationJournal of the American Psychoanalytic Associ-

ationJournal of AnatomyJournal of Applied PhysiologyJournal of BacteriologyJournal of BiochemistryJournal of Biological ChemistryJournal of Bone and Joint Surgery; AmericanVolume

Journal of Bone and Joint Surgery; BritishVolume

Journal of Cardiovascular SurgeryJournal of Cell BiologyJournal of Cellular PhysiologyJournal of Child Psychology and Psychiatry and

Allied DisciplinesJournal of Chronic DiseasesJournal of Clinical Endocrinology and Metab-

olismJournal of Clinical InvestigationJournal of Clinical PathologyJournal of Comparative NeurologyJournal of EndocrinologyJournal of Experimental MedicineJournal of General MicrobiologyJournal of General PhysiologyJournal of General VirologyJournal of GerontologyJournal of Health and Social BehaviorJournal of Histochemistry and CytochemistryJournal of the History of Medicine and Allied

SciencesJournal of HygieneJournal of ImmunologyJournal of Infectious DiseasesJournal of Investigative DermatologyJournal of Laboratory and Clinical Medicine

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SERIALS SELECTION IN ACADEMIC LIBRARIES

Journal of Lipid ResearchJournal of Medical EducationJournal of Medical GeneticsJournal of Medicinal ChemistryJournal of Molecular BiologyJournal of Nervous and Mental DiseaseJournal of NeurochemistryJournal of Neurology, Neurosurgery and

PsychiatryJournal of Neuropathology and Experimental

NeurologyJournal of NeurophysiologyJournal of NeurosurgeryJournal of Nuclear MedicineJournal of NutritionJournal of Obstetrics and Gynaecology of the

British CommonwealthJournal of Occupational MedicineJournal of ParasitologyJournal of PathologyJournal of Pediatric SurgeryJournal of PediatricsJournal of Pharmaceutical SciencesJournal of Pharmacology and Experimental

TherapeuticsJournal of Pharmacy and PharmacologyJournal of PhysiologyJournal of the Reticuloendothelial SocietyJournal of Speech and Hearing DisordersJournal of Surgical ResearchJournal of Thoracic and Cardiovascular SurgeryJournal of TraumaJournal of Ultrastructure ResearchJournal of UrologyJournal of VirologyKidney InternationalLaboratory InvestigationLancetLaryngoscopeLife SciencesMayo Clinic ProceedingsMedical Clinics of North AmericaMedical EconomicsMedical HistoryMedical Journal of AustraliaMedical Letter on Drugs and TherapeuticsMedical Radiography and PhotographyMedical Research EngineeringMedical World NewsMedicineMental HygieneMetabolism: Clinical and ExperimentalMethods of Biochemical Analysis

Methods in Medical ResearchMilbank Memorial Fund QuarterlyMinnesota MedicineModern Concepts of Cardiovascular DiseaseModern HospitalModern TreatmentMolecular PharmacologyNatureNeurologyNew England Journal of MedicineNew PhysicianNew York State Joumal of MedicineNutrition Abstracts and ReviewsNutrition ReviewsObstetrical and Gynecological SurveyObstetrics and GynecologyParasitologyPediatric Clinics of North AmericaPediatric ResearchPediatricsPerspectives in Biology and MedicinePflugers Archiv; European Journal of Physiol-

ogyPharmacological ReviewsPhysics in Medicine and BiologyPhysiological ReviewsPlastic and Reconstructive SurgeryPostgraduate Medical JournalPostgraduate MedicineProceedings of the American Association for

Cancer ResearchProceedings of the National Academy of Sci-

ences of the USAProceedings of the Royal Society of MedicineProceedings of the Society for Experimental

Biology and MedicineProgress in AllergyProgress in Cardiovascular DiseasesPsychiatric QuarterlyPsychiatryPsychoanalytic QuarterlyPsychosomatic MedicineQuarterly Journal of Experimental Physiology

and Cognate Medical SciencesQuarterly Journal of MedicineQuarterly Journal of Studies on Alcohol Pt. AQuarterly Journal of Studies on Alcohol Pt. BRadiation ResearchRadiologic Clinics of North AmericaRadiologyScandinavian Journal of Urology and Nephrol-

ogyScience

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JO ANN BELL

Scientific AmericanScottish Medical JournalSeminars in HematologyStain TechnologySteroidsSurgerySurgery, Gynecology and ObstetricsSurgical Clinics of North AmericaTexas Reports on Biology and MedicineThoraxThrombosis et Diathesis HaemorrhagicaToday's HealthTohoku Journal of Experimental MedicineTransactions of the American Neurological

Association

TransfusionTransplantationVascular SurgeryVirchows Archiv; Abteilung A: Pathologische

AnatomieVirchows Archiv; Abteilung B: ZellpathologieVirologyWHO ChronicleYale Journal of Biology and MedicineYearbook of AnesthesiaYearbook of CancerYearbook of Eye, Ear, Nose, and Throat

SurgeryYearbook of Obstetrics and GynecologyYearbook of Ophthalmology

Bull. Med. Libr. Assoc. 62(3) July 1974290