An observational study to evaluate the effects of intravenous diclofenac in comparison to tramadol on early postoperative pain relief in patients following spinal anaesthesia. Int J of Biomed & Adv Res [Internet]. 2019 Oct. 30 [cited 2026 Mar. 12];10(10):e5420. Available from: https://ssjournals.co.in/index.php/ijbar/article/view/5420