Orengo-Aguayo, Rosaura, and David Pérez-Jiménez. 2009. “Impact of Relationship Dynamics and Gender Roles in the Protection of HIV Discordant Heterosexual Couples: An Exploratory Study in the Puerto Rican Context”. Puerto Rico Health Sciences Journal 28 (1). https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/158.