Upadhyay D, Palaian S, Kishore P, Paudel R, Prabhu M, Shankar P, Mishra P. Tramadol. Journal of Institute of Medicine [Internet]. 2007 Oct. 22 [cited 2024 Nov. 22];28(3):57-61. Available from: https://nepjol.info./index.php/JIOM/article/view/633