A Comparative Study to Evaluate the Effectiveness of Perioperative Multi Modal Analgesia with Ultrasound Guided Bilateral Subcostal TAP Block for Post-Operative Analgesia in Patients undergoing Elective Laparoscopic Cholecystectomy under General Anaesthes - Dhanpal, Radhika; Mudalagirigowda, Shwetha; Chandrashekar, Deepika (Archives of Anesthesiology and Critical Care, 2023)