TY  - BOOK
AU  - Rothman,Kenneth J..
TI  - Epidemiology : an introduction / 
SN  - 9780199754557
U1  - 614.4 ROT/E 
PY  - 2012///
CY  - New Delhi : 
PB  - Oxford University Press , 
KW  - EPIDEMIOLOGY
KW  - EPIDEMIOLOGIC METHODS
ER  -