TY  - BOOK
AU  - Rothman, Kenneth J.
TI  - Epidemiology: an introduction
SN  - 0195135547
U1  - 614.4 
PY  - 2002///
CY  - Oxford
PB  - Oxford University Press
KW  - EPIDEMIOLOGY
KW  - Epidemiology-Textbooks
KW  - Epidemiologic methods
ER  -