TY  - BOOK
AU  - Kelsey, Jennifer L.
AU  -  Evans, Alfred
AU  -  Thompson, W. Douglas
AU  -  Whittemore, Alice S.
TI  - Methods in Observational Epidemiology
T2  - Monographs in epidemiology and biostatistics ; v. 26
SN  - 978-0-19-508377-4
AV  - RA652.4.K45 
CY  - Oxford
KW  -  Epidemiology--Statistical methods
KW  - Epidemiology--Research
KW  - Public health
ER  -