TY  - BOOK
AU  - Gordis,Leon
AU  - Hopkins, John
AU  - Professer Emeritus
TI  - Epidemiology
SN  - 9781455737338 
AV  - RA 651 .G6  2014
PY  - 2014///
CY  - Philadelphia, PA
PB  - Elsevier/Saunders
KW  - Epidemiology
KW  - Epidemiologic Methods
N1  - Includes bibliographical references and index
ER  -