Evaluation of perfusion index to predict hypotension in lower segment caesarean section under spinal anaesthesia. International Journal of Public Health Asia Pacific , Khon Kaen, Thailand, v. 3, n. 6, p. 1–15, 2024. DOI: 10.62992/9thgqn07. Disponível em: https://ijphap.com/index.php/home/article/view/75.. Acesso em: 27 mar. 2025.