TY  - BOOK
AU  - Merrill,Ray M.
TI  - Introduction to epidemiology
SN  - 9781449665487
PY  - 2013///
CY  - Burlington, Mass.
PB  - Jones & Bartlett Learning
KW  - Epidemiology
KW  - Epidemiologic Methods
N1  - Includes bibliographical references and index
ER  -