VERMA, L.; CHAUDHARY, P. K.; GUPTA, C.; SAROJ, U. A comparative study of tapentadol versus tramadol in the treatment of low back pain. International Journal of Basic & Clinical Pharmacology, [S. l.], v. 9, n. 7, p. 1064–1068, 2020. DOI: 10.18203/2319-2003.ijbcp20202942. Disponível em: https://www.ijbcp.com/index.php/ijbcp/article/view/4048. Acesso em: 4 dec. 2023.