Dr. Salwa Tayel & Prof. A Mandil & Prof. Ashry Gad KSU Department of Family & Community Medicine (December, 2013) 1 DEMOGRAPHY: Population Pyramids 12/4/2015.
27/9/2010Definitions in Epidemiology (Dr. Salwa Tayel) 1.
Dr. Salwa Tayel, Dr. A. Almazam , Dr Afzal Mahmood
