Faheem Asghar, Kamran Javaid, Umar Iqbal, Fahad Mansoor, Khumair Asif. Compare the Effectiveness of Nulbuphine with Ropivacaine Versus Ropivacaine alone in Patients undergoing Upper Limb Surgeries. Pakistan Journal of Medical & Health Sciences [Internet]. 2022 Apr. 12 [cited 2024 Nov. 24];16(03):292. Available from: https://mail.pjmhsonline.com/index.php/pjmhs/article/view/446