TY  - BOOK
AU  - Stewart,Antony
TI  - Basic statistics and epidemiology: a practical guide 
SN  - 9781846194115
PY  - 2010///
CY  - Oxford
PB  - Radcliffe Pub.
KW  - Epidemiologic Methods
KW  - Statistics as Topic
KW  - methods
N1  - References : p. 191-194
ER  -