TY  - BOOK
AU  - Timmreck,Thomas C.
TI  - An introduction to epidemiology
SN  - 0763706353
PY  - 1998///
CY  - Boston
PB  - Jones and Bartlett Publishers
KW  - Epidemiology
KW  - Epidemiologic Methods
N1  - Includes bibliographical references and index
ER  -