Liu, G., Hariri, S., Bradley, H., Gottlieb, S. L., Leichliter, J. S., & Markowitz, L. E. (2015). Trends and Patterns of Sexual Behaviors Among Adolescents and Adults Aged 14 to 59 Years, United States. Sex Transm Dis.

Liu, Gui, Susan Hariri, Heather Bradley, Sami L. Gottlieb, Jami S. Leichliter, et Lauri E. Markowitz. "Trends and Patterns of Sexual Behaviors Among Adolescents and Adults Aged 14 to 59 Years, United States." Sex Transm Dis 2015.

Liu, Gui, et al. "Trends and Patterns of Sexual Behaviors Among Adolescents and Adults Aged 14 to 59 Years, United States." Sex Transm Dis 2015.