BUTLER-FERNÁNDEZ, Krystal M.; MORALES-AROCHO, Leyda; PEDRO-GUTIÉRREZ, Elsa. Evaluation of the Timing of Opioid Administration: A Pilot Study. Puerto Rico Health Sciences Journal, [S. l.], v. 42, n. 1, p. 77–80, 2023. Disponível em: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/2855. Acesso em: 29 oct. 2025.