Koepsell, Thomas D. Epidemiologic methods : studying the occurrence of illness / Thomas D. Koepsell, Noel S. Weiss. - Oxford ; New York : Oxford University Press, 2003. - ix, 513 p. : ill., maps ; 24 cm. Includes bibliographical references and index. ISBN: 0195150783 (cloth : acidfree paper) LCCN: 2002033763 Subjects--Topical Terms: Epidemiology--Methodology.Epidemiologic Methods. LC Class. No.: RA652.4 / .K645 2003 Dewey Class. No.: 614.4 National Library of Medicine Call No.: WA 950 / K78 2003