TY  - BOOK
AU  - Gordis, Leon
TI  - Epidemiology
SN  - 9781416040026
U1  - 614.4 
PY  - 2014///
CY  - Saunders
PB  - Elsevier
KW  - Epidemiologic Methods
KW  - Public health
KW  - Epidemiology
ER  -