TY  - BOOK
AU  -  Armitage P., Berry G.
TI  - Statistical methods in medical research
SN  - 0632036958
U1  - 519.5 
PY  - 1994///
CY  - Oxford
PB  - Blackwell Scientific Pulblications
KW  - Research Design
KW  - Biometry
KW  - Statistics
N2  -  Statistics, Biometry, Research Design
ER  -