1. ORIEL J.D. — Anal warts and anal coitus.Br J. Verier Dis, 1971b,47, 373–376.
2. Mccance D.J. — Genital papillomavirus infections: virology. In: Oriel J.D., Harris JRW. Recent Advances in sexually transmitted diseases 1986 n° 3 Churchill Livingstone Edinburgh, 109–125.
3. SYRJANEN S.M., von KROGH G., and SYRJANEN K.J. — Detection of human papillomavirus DNA in anogenital condylomata in men using in situ DNA hybridization applied to paraffin sections.Genitourin Med., 1987,63, 32–39.
4. BOGOMOLETZ W.V., POTET F., MOLAS G. — Condyloma acuminatum (Buschké-Loewenstein tumour) and verrucous squamous carcinoma of the perianal and anorectal region: a continuous precancerous spectrum?Histopathology, 1985,9, 1155–1169.
5. NASH G., ALLEN W., NASH S. — Atypical lesions of the anal mucosa in homosexual menJAMA, 1986,256, 873–876.