TY  - GEN
AU  - Rossignol , Annette 
TI  - Principles and  practice of epidemiology: an engaged approach
SN  - 9780071254359
U1  - 614.4 
PY  - 2007///
CY  - Boston
PB  - McGraw-Hill
KW  - EPIDEMIOLOGY
UR  - www.mhhe.com
ER  -