TY  - BOOK
AU  - Armitage, P
AU  - Berry, G
AU  - Matthews, J N S
TI  - Statistical methods in medical research
SN  - 0632052570
PY  - 2002///
PB  - Blackwell Sci
KW  - Statistical method
KW  - Medical statistics
KW  - Statistics
KW  - Research
ER  -