TY  - BOOK
AU  - Portney, Leslie Gross
AU  - Watkins, Mary P.
TI  - Foundations Of Clinical Research: Applications To Practice 
SN  - 0838510655
PY  - 1993///
PB  - Appleton and lange
KW  - Medicine
KW  - Research
KW  - Methodology
N1  - Include index
ER  -