REGMI, N. K.; SUBBA, S.; SHARMA, U. C. A Comparative Clinical Evaluation of Efficacy of Tramadol As An Adjuvant To Bupivacaine En Brachial Plexus Block For Upper Limb Surgery. Journal of Nepalgunj Medical College, [S. l.], v. 13, n. 2, p. 13–16, 2017. DOI: 10.3126/jngmc.v13i2.16535. Disponível em: https://www.nepjol.info/index.php/JNGMC/article/view/16535. Acesso em: 28 mar. 2024.