Colón López, V. (2011) “HIV-related Risk Behaviors among a Sample of Men who have Sex with Men in Puerto Rico: An Overview of Substance Use and Sexual Practices”, Puerto Rico Health Sciences Journal, 30(2). Available at: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/590 (Accessed: 19 December 2025).