CHOPRA, I. .; CHABRA, S. . A Comparative Study of 0.15% Bupivacaine with Tramadol and 0.15% Ropivacaine with Tramadol for Epidural Labour Analgesia. GMC Patiala Journal of Research and Medical Education, [S. l.], v. 5, n. 01, p. 38–42, 2022. Disponível em: https://jrme.gmcpatiala.edu.in/index.php/j/article/view/93. Acesso em: 7 nov. 2024.