TY  - BOOK
AU  - Rothman,Kenneth J.
TI  - Epidemiology: an introduction 
SN  - 9780199754557 (pbk.) :
U1  - 614.4 23
PY  - 2012///
CY  - New York, Oxford
PB  - Oxford University Press
KW  - Epidemiology
N1  - Previous ed.: 2002; Formerly CIP; Includes bibliographical references and index
ER  -