00272nam a2200121   450000500170000008200150001708400250003210000190005724000150007624500260009126000230011730000100014020251220114130.0  a8H0bPRE-S  2Colon Classification  aPreetha ramani  asanchayika  aसंचयिका  bJawahar pustakalay  a119p.