TY  - GEN
AU  - Gerstman B.
TI  - Epidemiology kept simple: : an introduction to traditional and modern epidemiology.
SN  - 0471400289
U1  - 614.4 GER 
CY  - John Wiley-Liss and Sons Inc. 
KW  - Epidemiology
N1  - Includes bibliographical references and index
ER  -