Opioid free anesthesia in a pre-term neonate: A case report. Indian Journal of Case Reports, [S. l.], v. 5, n. 6, p. 539–541, 2019. DOI: 10.32677/IJCR.2019.v05.i06.011. Disponível em: https://mansapublishers.com/ijcr/article/view/2024. Acesso em: 5 dec. 2025.