TY  - BOOK
AU  - Portney,Leslie Gross
AU  - Watkins,Mary P.
TI  - Foundations of clinical research: applications to practice 
SN  - 0131716409
PY  - 2009///
CY  - Upper Saddle River, N. J.
PB  - Pearson
KW  - Biomedical Research
KW  - methods
KW  - Statistics
ER  -