00295nam a2200109Ia 4500008004100000082000800041100002200049245003300071250000900104260006100113300001100174160921s9999    xx            000 0 und d  a616  aDas,  Ashok Kumar  aPostgraduate Medicine Vol.24  aXXIV  bThe Association of Physicians of India c2010aNew Delhi  a534 P.