1. MDMA (‘ecstasy’) use, and its association with high risk behaviors, mental health, and other factors among gay/bisexual men in New York City Klitzman, Robert L.; Greenberg, Jason D.; Pollack, Lance M.; Dolezal, Curtis L. 2002 Articles Gay men--Sexual behaviorBisexual men--Sexual behaviorEcstasy (Drug)Unsafe sexSame-sex partner abuseHIV infections—Prevention
2. MDMA (“Ecstasy”) Abuse and High-Risk Sexual Behaviors Among 169 Gay and Bisexual Men Klitzman, Robert L.; Pope Jr., Harrison G.; Hudson, James I. 2000 Articles Gay men--Sexual behaviorBisexual men--Sexual behaviorEcstasy (Drug)Unsafe sex