Gangadharaiah, Ranjitha, D. Devika Rani, N. Venkatesh, S. Nithish, and S. S. Nethra. 2021. “Efficacy of Ultrasound Guided Bilateral Erector Spinae Block for Postoperative Analgesia in Patients Undergoing Laparoscopic Cholecystectomy under General Anaesthesia – A Randomised Control Study”. Karnataka Anaesthesia Journal 17 (1-2):13-21. https://doi.org/10.4103/kaj/2019/v17i1-2/158805.