TY  - BOOK
AU  - Yarnell, John
TI  - Epidemiology and prevention : a systems-based approach
SN  - 9780198530145
SN  - 200727306
U1  - 614.4 YAR 
PY  - 2007///
CY  - Oxford
PB  - Oxford University Press
KW  - Clinical epidemiology
KW  - Epidemiologic Methods
KW  - Epidemiology
N1  - Includes bibliographical references and index
ER  -