Assaf, R. D., Javanbakht, M., Meites, E., Gratzer, B., Steinau, M., Crosby, R. A., . . . Gorbach, P. M. (2020). Sexual mixing patterns and anal HPV among young gay, bisexual, and other men who have sex with men and transgender women in 2 cities in the United States, 2012–2014. Sex Transm Dis.

Assaf, Ryan D., Marjan Javanbakht, Elissa Meites, Beau Gratzer, Martin Steinau, Richard A. Crosby, Lauri E. Markowitz, Elizabeth R. Unger, ja Pamina M. Gorbach. "Sexual Mixing Patterns and Anal HPV Among Young Gay, Bisexual, and Other Men Who Have Sex With Men and Transgender Women in 2 Cities in the United States, 2012–2014." Sex Transm Dis 2020.

Assaf, Ryan D., et al. "Sexual Mixing Patterns and Anal HPV Among Young Gay, Bisexual, and Other Men Who Have Sex With Men and Transgender Women in 2 Cities in the United States, 2012–2014." Sex Transm Dis 2020.