TY - BOOK AU - Pal,T.K. AU - Agarwal,Sangita TI - Clinical research: practice and prospects SN - 9788123916859 AV - RA648.6 .C585 2009 PY - 2009/// CY - New Delhi PB - KW - Epidemiology KW - Methodology KW - Congresses. Medicine KW - Research ER -