Characteristics of gay and bisexual men who rarely use HIV risk reduction strategies during condomless anal intercourse: Results from the FLUX national online cohort study
High-Risk Sexual Behavior by HIV-Positive Men Who Have Sex with Men --- 16 Sites, United States, 2000--2002
Alpha Doctors on Twitter: "The insertive partner is also at risk for getting HIV during anal sex. HIV may enter the top partner's body through the opening at the tip of the
Antiretroviral Postexposure Prophylaxis After Sexual, Injection-Drug Use, or Other Nonoccupational Exposure to HIV in the United States
Recommendations from the U.S. Department of Health and Human Services