000 00322nam a2200133Ia 4500
008 200512s9999 xx 000 0 und d
082 _a614.44
100 _aGupta
245 0 _aBasic principles of clinical research & methodology
250 _a_
260 _bJay pee
_c2009
440 _v_
650 _acommunity medicine
999 _c52705
_d52705