TY  - BOOK
AU  - Rothman, KJ.
AU  - Greenland, S.
TI  - Modern epidemiology 
SN  - 9780316757805
PY  - 1998///
CY  - Philadelphia
PB  - Lippincott-Raven
KW  - Public Health
KW  - Epidemiologic Methods
N1  - Includes bibliographical references (p. [675]-709) and index
ER  -