TY  - GEN
AU  - Portney , Leslie G.
AU  - Watkins , Mary P.  
TI  - Foundations of clinical research: application to Practice
SN  - 9780132344708
U1  - 616.07 
PY  - 2009///
CY  - London
PB  - Pearson
KW  - RESEARCH
KW  - CLINICAL RESEARCH
KW  - COMMUNITY MEDICINE
ER  -