TY  - BOOK
AU  - Portney,Leslie Gross
AU  - Watkins,Mary P.
TI  - Foundations of clinical research applications to practice
SN  - 0838510655
PY  - 1993///
CY  - Norwalk, Conn.
PB  - Appleton & Lange
KW  - Research
KW  - Methods
ER  -