TY  - BOOK
AU  - Campbell, M.J
TI  - Medical statistics  a common sense approach
SN  - 9780471987215
AV  - R853 .S7C36 1999 
PY  - 1990///
CY  - New york
PB  -  John wILEY & SONS LTD
KW  - Medical Statistics
ER  -