TY  - BOOK
AU  - Rothman Kenneth J
AU  - Greenland Sander
TI  - Modern epidemiology
SN  - 0-316-75780-2
U1  - 614.4 
PY  - 1998///
CY  - Philadelphia
PB  - Lippincott-Raven
KW  - Epidemiology
KW  - Epidemiology-statistical methods
ER  -