EFFECT OF MAGNESIUM WITH ROPIVACAINE IN SUPRACLAVICULAR BRACHIAL PLEXUS BLOCK FOR POST-OPERATIVE ANALGESIA: A RANDOMIZED CONTROLLED STUDY. Asian Journal of Medical Research and Health Sciences, [S. l.], v. 4, n. 2, p. 1550–1557, 2026. Disponível em: https://ajmrhs.com/journal/article/view/646. Acesso em: 1 jul. 2026.