TY  - BOOK
AU  - Friis, Robert H.
AU  - Sellers, Thomas A.
TI  - Epidemiology for public health practice
SN  - 0834211785
PY  - 1999///
CY  - Gaithersburg, Maryland
PB  - An Aspen Publication
KW  - Data Analysis
KW  - Epidemiologic Methods
KW  - Epidemiology
KW  - Public Health
KW  - Public Health Personnel
ER  -