1. Centers for Disease Control. 2009. “Incidence and Diagnoses of HIV Infection - Puerto Rico, 2006.” http://www.cdc.gov/Mmwr/preview/mmwrhtml/mm5821a3.htm.
2. Centers for Disease Control. 2010. “Prevalence and Awareness of HIV Infection Among Men Who Have Sex With Men - 21 Cities, United States, 2008.” https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5937a2.htm.
3. Centers for Disease Control. 2011. “Results of the Expanded HIV Testing Initiative - 25 Jurisdictions, United States, 2007–2010.” https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6024a2.htm.
4. Centers for Disease Control. 2012. “HIV Infections Attributed to Male-to-Male Sexual Contact — Metropolitan Statistical Areas, United States and Puerto Rico, 2010.” https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6147a3.htm.