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Comparison of age-specific prevalence of anal (A) human papillomavirus (HPV)16 and (B) high-risk (HR) HPV infection among women (in this study) and men [7], according to human immunodeficiency virus (HIV) status and male sexuality. HPV16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, and 68; MSM, men who have sex with men; MSW, men who have sex with women.
