Cruz, N. I., Santiago, E. and Figueroa, B. C. (2020) “Insurance Type and Surgical-Patient Characteristics in the UPR-Affiliated Hospitals”, Puerto Rico Health Sciences Journal, 39(3), pp. 270–274. Available at: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/2135 (Accessed: 8 December 2025).