00947nam a22002531a 4500 1/19569 021014s1996 enk b 1 0 eng d 0195083776 20137 DLC GR-PeUP 614.4΄072 ME Methods in observational epidemiology / Jennifer L. Kelsey, Alice S. Whittemore...[et al.] 2nd ed. New York : Oxford University Press, 1996 432 p. ; 24 cm. Monographs in Epidemiology and Biostatistics ; Includes bibliographical references & index Epidemiology Research Methodology. Epidemiology Statistical methods. Kelsey, Jennifer L. Whittemore, Alice s. Monographs in Epidemiology and Biostatistics ; 26 INST UNIPILB MAIN 20040709 614.4΄072 ME 00140294 00140294 LOAN 0 1 /webopac/covers/01/20137_0195083776.jpg