“Postoperative Analgesia After Lumbar Disc Surgery: A Comparison Between Ketorolac and Opioid”. Journal of the Bangladesh Society of Anaesthesiologists 23, no. 2 (March 2, 2014): 56–61. Accessed June 30, 2026. https://banglajol.info/index.php/JBSA/article/view/18175.