TY  - BOOK
AU  - Gordis, Leon,
TI  - Epidemiology
SN  - 0721603262
PY  - 2004///
CY  - Philadelphia, Pa.
PB  - Elsevier Saunders
KW  - Epidemiology
KW  - Epidemiologic Methods
KW  - Public Health
N1  - Includes bibliographical references and index
ER  -