Laparoscopic Cholecystectomy Under Low Thoracic Combined Spinal Epidural Anaesthesia: A Comparative Study Between Isobaric And Hyperbaric Bupivacaine Journal title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) Authors: Loveleen Kour, Kuldip C. Gupta, Nandita Mehta, Kuldeep Singh Mehta Subject(s):