Efficacy of brachial plexus block in postoperative analgesia in trauma surgeries of the upper limb: A single-center observational study. Actas Médicas (Ecuador), [S. l.], v. 33, n. 2, p. 106–111, 2023. DOI: 10.61284/143. Disponível em: https://actasmedicas.ec/index.php/am/article/view/143.. Acesso em: 1 may. 2026.