000 00313nam a2200133Ia 4500
008 200512s9999 xx 000 0 und d
082 _a616.2
100 _aGpi singh
245 0 _aMCQ's in preventive and social medicine
250 _a1
260 _bElsevier
_c-
440 _v_
650 _aRespiratory medicine
999 _c52237
_d52237