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pubmed:abstractText |
The prevalence of anal squamous intraepithelial lesions is high among human immunodeficiency virus-positive homosexual males and, to a lesser extent, among human immunodeficiency virus-negative homosexual males. Furthermore, the incidence of high-grade squamous intraepithelial lesions, the putative precursor lesion to invasive cancer, is also high. We report the first prospective study of high-resolution anoscopy-directed surgical treatment of high-grade squamous intraepithelial lesions.
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