Perfusion Index as a Parameter for Effectiveness ofUltrasound-guided Supraclavicular Brachial Plexus Block. Journal of the Bangladesh Society of Anaesthesiologists, [S. l.], v. 36, n. 2, p. 5–13, 2026. DOI: 10.3329/jbsa.v36i2.91697. Disponível em: https://banglajol.info/index.php/JBSA/article/view/91697. Acesso em: 16 jul. 2026.