CRUZ, Norma I.; SANTIAGO, Elvis; FIGUEROA, Beatriz C. Insurance Type and Surgical-Patient Characteristics in the UPR-Affiliated Hospitals. Puerto Rico Health Sciences Journal, [S. l.], v. 39, n. 3, p. 270–274, 2020. Disponível em: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/2135. Acesso em: 8 dec. 2025.