TY - BOOK AU - PARTHAV PATEL TI - AN OBSERVATIONAL STUDY BETWEEN 0.125% ROPIVACAINE AND 0.125% BUPIVACAINE ALONG WITH TRAMADOL TO PROVIDE POST OPERATIVE EPIDURAL ANALGESIA IN ATIENTS UNDERGOING MAJOR ABDOMINAL SURGERIES. U1 - 617.96 PY - 2014///-2017 CY - PIPARIYA PB - SUMANDEEP VIDYAPEETH KW - ANAESTHESIA ER -