Singh KSK, Sharma VK, Shouche S, Sasidharan S, Dhillon GK. A comparison of high thoracic epidural anaesthesia versus conventional intravenous opioids in pediatric patients undergoing corrective open heart surgery for ventricular septal defect. Int J Adv Med [Internet]. 2021 Jul. 23 [cited 2025 Dec. 28];8(8):1142-53. Available from: https://www.ijmedicine.com/index.php/ijam/article/view/3017