TY  - BOOK
AU  - Merrill, Ray M
TI  - Introduction to epidemiology
SN  - 9780763766221
SN  - 200901259
U1  - 614.4 MER 
PY  - 2010///
CY  - Boston, MA
PB  - Jones and Bartlett Publishers
KW  - Epidemiologic Methods
KW  - Epidemiology
N1  - Includes bibliographical references and index
ER  -