TY  - BOOK
AU  - Gordis,Leon
TI  - Epidemiology
SN  - 072168338X (pbk.)
AV  - RA651.G6 2000 
PY  - 2000///
CY  - Philadelphia
PB  - W.B. Saunders
KW  - Epidemiology
KW  - Epidemiologic Methods
N1  - Includes bibliographical references and index
ER  -