Esteban, Ernesto P., Adalis Rivera, and Jaileen Rivera-Rodriguez. 2019. “Age-Specific Reference Ranges for Serum Prostate-Specific Antigen in Puerto Rican Men With Proven Prostate Cancer”. Puerto Rico Health Sciences Journal 38 (2). https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/1664.