TY  - BOOK
AU  - Kirkwood , Betty R.
AU  - Sterne , Jonathan A.C.
TI  - Essential medical statistics
SN  - 9780865428713
U1  - 610.2 
PY  - 2003///
CY  - Massachusetts
PB  - Blackwell Science
KW  - Medical Statistics
UR  - www.blackwell.com
ER  -