Wassertheil-Smoller, Sylvia. Biostatistics and epidemiology : a primer for health professionals / Sylvia Wassertheil-Smoller. - 2nd ed. - New York : Springer-Verlag, c1995. - xviii, 185 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0387943889 (acidfree paper) Subjects--Topical Terms: Epidemiology--Statistical methods.Clinical trials--Statistical methods.Biometry.Epidemiologic Methods. Dewey Class. No.: 614.4072 / WAB 1995