^Robert W. Dumond, "Ignominious Victims: Effective Treatment of Male Sexual Assault in Prison," August 15, 1995, p. 2; states that "evidence suggests that [male-male sexual assault in prison] may a staggering problem"). Quoted in Mariner, Joanne; (Organization), Human Rights Watch. No escape: male rape in U.S. prisons. Human Rights Watch. 2001-04-17: 370 [7 June 2010]. ISBN 978-1-56432-258-6.
^Struckman-Johnson, Cindy; Struckman-Johnson, David. A Comparison of Sexual Coercion Experiences Reported by Men and Women in Prison. Journal of Interpersonal Violence. 2006, 21 (12): 1591–1615. ISSN 0886-2605. PMID 17065656. doi:10.1177/0886260506294240.; reports that "Greater percentages of men (70%) than women (29%) reported that their incident resulted in oral, vaginal, or anal sex. More men (54%) than women (28%) reported an incident that was classified as rape."