UpToDate: HIV infection: Risk factors and prevention strategies.uptodate.com/contents/hiv-infection-risk-factors-and-prevention-strategies.
235
UpToDate: Prevention of sexually transmitted infections. uptodate.com/contents/prevention-of-sexually-transmitted-infections.
236
Jared M. Baeten et al. Antiretroviral Prophylaxis for HIV Prevention in Heterosexual Men and Women. N Engl J Med 2012, PMCID: PMC3770474.
237
US Public Health Service: Preexposure prophylaxis for the prevention of HIV infection in the United States — 2014. cdc.gov/hiv/pdf/prepguidelines2014.pdf.
