TY  - BOOK
AU  - Koepsell, Thomas D.
AU  - Weiss, Noel S.,
TI  - Epidemiologic methods: studying the occurrence of illness 
SN  - 0195150783 (cloth : acid-free paper)
AV  - RA652.4 .K645 2003
PY  - 2003///
CY  - Oxford : New York
PB  - Oxford University Press
KW  - Epidemiologic Methods
KW  - Epidemiology
N1  - Includes bibliographical references and index
ER  -