1. Centers for Disease Control and Prevention2016-09-16HIV in the United States: at a glance. 2015. http://www.cdc.gov/hiv/statistics/overview/ataglance.html
2. Centers for Disease Control and Prevention2016-09-16HIV surveillance report, 2014; vol 26. 2015 Nov. http://www.cdc.gov/hiv/pdf/library/reports/surveillance/cdc-hiv-surveillance-report-us.pdf
3. Centers for Disease Control and Prevention2016-09-16HIV among gay and bisexual men. 2015. http://www.cdc.gov/hiv/group/msm/
4. Centers for Disease Control and Prevention2016-09-16HIV risk, prevention, and testing behaviors: National HIV Behavioral Surveillance System: men who have sex with men, 20 U.S. Cities, 2011. HIV Surveillance Special Report, Number 8. 2014. http://www.cdc.gov/hiv/pdf/HSSR_8_NHBS_MSM_PDF-03.pdf