TY  - BOOK
AU  - Alderson,M.R.
TI  - An introduction to epidemiology
SN  - 0333350146
PY  - 1983///
CY  - London
PB  - Mac Millan Press
KW  - Epidemiologic methods
KW  - Epidemiology
N1  - 2nd.ed; Includes indexs
ER  -