TY  - BOOK
AU  - Sackett,David L.
AU  - Haynes, R.Brian
AU  - Tugwell, Peter
TI  - Clinical epidemiology: a basic science for clinical medicine
SN  - 0316765953
AV  - RA652 .S23 1985
PY  - 1985///
CY  - Toronto
PB  - Little, Brown and company
KW  - Clinical epidemiology
ER  -