TY  - BOOK
AU  - Gordis,Leon
TI  - Epidemiology
SN  - 1416025308
PY  - 2004///
CY  - Phialdelphia
PB  - Elsevier Saunders
KW  - Epidemiology
KW  - Epidemiology methods
N1  - Includes index
ER  -