PRIVADO, M. S.; ISSY, A. M.; LANCHOTE, V. L.; GARCIA, J. B. S.; SAKATA, R. K. Epidural versus intravenous fentanyl for postoperative analgesia following orthopedic surgery: randomized controlled trial. São Paulo Medical Journal, [S. l.], v. 128, n. 1, p. 5–9, 2010. Disponível em: https://periodicosapm.emnuvens.com.br/spmj/article/view/1698. Acesso em: 18 mar. 2025.