TY  - BOOK
AU  - Stewart,Antony
TI  - Basic statistics and epidemiology: a practical guide 
SN  - 1857755898
PY  - 2002///
CY  - Oxon, U.K.
PB  - Radcliffe Medical Press
KW  - Epidemiologic Methods
KW  - Handbooks
N1  - Includes bibliographic references (p. [143]-144) and index
ER  -