TY  - BOOK
AU  - Sackett,David L.
AU  - Haynes,R.Brian
AU  - Tugwell,Peter
TI  - Clinical epidemiology: A basic science for clinical medicine 
SN  - 0316765953 (pbk.)
AV  - RA652 .S23 1985
U1  - 614.4 19
PY  - 1985///
CY  - Boston
PB  - Little, Brown
KW  - Clinical epidemiology
N1  - Four Critical appraisal cards in pocket; Includes bibliographies and index
ER  -