TY  - BOOK
AU  - Gordis, Leon, 
TI  - Epidemiology
SN  - 9781416040026 (pbk.) 
U1  - 614.4 
PY  - 2009///
CY  - Philadelphia : 
PB  - Elsevier/Saunders, 
KW  - Epidemiology
KW  - Epidemiologic Methods
ER  -