00319nam a22001217a 4500082001300000100001400013245007000027250001200097260004400109300001000153654001600163700001800179  a618bDUT  aDutta,D.C  aText book of obstetrics: including perinatology and contraception  a5th Ed.  aCalcuttabNew Central Book Agencyc2001  a705p.  aGynaecology  aKonar,Hiralal