Use of Pulse Oximeter Perfusion Index to Predict the Success of Supraclavicular Brachial Plexus Block in Various Upperlimb Surgeries. Annals of Medicine and Medical Sciences, [S. l.], p. 988–991, 2025. DOI: 10.5281/. Disponível em: https://ammspub.com/index.php/amms/article/view/313. Acesso em: 8 sep. 2025.