Kamath V, Lasrado A. Efficacy and safety of intravenous acetaminophen versus intravenous butorphanol as post-operative analgesic in obstetrics and gynecology: a comparative study. Int J Adv Med [Internet]. 2017 Feb. 12 [cited 2025 Nov. 17];1(3):222-9. Available from: https://www.ijmedicine.com/index.php/ijam/article/view/484