TY  - BOOK
AU  - Friis,Robert H.
AU  - Sellers,Thomas A.
TI  - Epidemiology for public health practice
SN  - 9781449665494
PY  - 2014///
KW  - Epidemiology
KW  - Epidemiologic methods
KW  - Public health
N1  - Includes bibliographical references and index
ER  -