TY  - BOOK
AU  - Lachin ,John M
TI  - Biostatistical Methods: The Asssment of Relative Risk 
SN  - SC&ISBK386
U1  - 570.15195 
PY  - 2001///
CY  - New York
PB  - John Wiley & Sons
KW  - Epidemiology
ER  -