TY  - BOOK
AU  - Armitage, P.
AU  - Berry, G.
AU  - Matthews, J.N.S.
TI  - Statistical methods in medical research 
SN  - 9780632052578
U1  - 519.5 
PY  - 2002///
CY  - Oxford
PB  - Blackwell Science
KW  - Medical Statistics
KW  - Medical Sciences
ER  -