Kumar M, Jain T. Post-operative analgesic effect of wound infiltration with bupivacaine versus mixture of bupivacaine and tramadol in caesarean section under spinal anaesthesia: a randomized double-blind interventional controlled study. Int J Reprod Contracept Obstet Gynecol [Internet]. 2026 Oct. 29 [cited 2026 Oct. 30];15(11):4496-501. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/17570