TY  - BOOK
AU  - Friedman , G. D.  .
TI  - Primer Of Epidemiology / 
U1  - 614.4 
PY  - 1987///
CY  -  : 
PB  - McGraw , 
KW  - Epidemiology
KW  - Preventive and Social Medicine
KW  - Medical Science
ER  -