Arroyo-Novoa, Carmen Mabel, et al. “Pain, Anxiety, and the Continuous Use of Opioids and Benzodiazepines in Trauma Intensive Care Unit Survivors: An Exploratory Study”. Puerto Rico Health Sciences Journal, vol. 41, no. 3, Aug. 2022, pp. 111-6, https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/2586.