TY  - GEN
AU  - Haynes, Brian, R. ;ed. 
AU  - Tugwell peter. ed.
TI  - Clinical epidemiology: How to do clinical practice  research
SN  - 9780781745246
U1  - 614.4 
PY  - 2006///
CY  - Philadelphia
PB  - Lippincott Williams & Wilkins
KW  - BIO MEDICAL RESERCH  METHOD
KW  - CLINICAL EPIDEMIOLOGY
KW  - REASERCH DESIGN
UR  - www.lww.com
ER  -