000 00323nam a2200133Ia 4500
008 200512s9999 xx 000 0 und d
082 _a614.44
100 _aBabu
245 0 _aClinical Research Methodology And Evdidence Based Medicine
250 _a-
260 _bBI
_c2007
440 _v-
650 _acommunity medicine
999 _c56215
_d56215