Shah HA, B. JS, Bhavsar M. A comparative study of oral tapentadol with thoracic epidural analgesia versus intravenous tramadol and paracetamol combination for postoperative analgesia in off pump CABG. Int J Basic Clin Pharmacol [Internet]. 2017 Feb. 2 [cited 2025 Oct. 28];2(6):723-7. Available from: https://www.ijbcp.com/index.php/ijbcp/article/view/1356