Nadir Nazir, Muhammad Ashraf Memon, Muhammad Arshed, Arshad Ahmed Khan Khanzada, Ali Asgher, Imran Ali. (2021). Assessment of Post¬ anesthetic shivering by using Ketamine and Tramadol: A randomized controlled trial. Drugs and Cell Therapies in Hematology, 10(1), 4151–4156. Retrieved from http://www.dcth.org/index.php/journal/article/view/874