Arroyo-Novoa, Carmen Mabel, Milagros I. Figueroa-Ramos, and Kathleen A. Puntillo. 2019. “Occurrence and Practices for Pain, Agitation, and Delirium in Intensive Care Unit Patients”. Puerto Rico Health Sciences Journal 38 (3). https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/1961.