1. Predictors of Discordant Reports of Sexual and HIV/Sexually Transmitted Infection Risk Behaviors Among Heterosexual Couples Witte, Susan S.; El-Bassel, Nabila; Gilbert, Louisa; Wu, Elwin; Chang, Mingway P. 2007 Articles Sexually transmitted diseases--PreventionCouples--Sexual behaviorCouples--Health and hygieneHIV infections--Risk factorsEpidemiology