1. Proctologic lesion observed in male homosexuals;Marino;Dis. Colon Rectum,1964
2. Anorectal venereal disease;Morson,1964
3. Syphilitic proctitis in a homosexual;Nazemi;JAMA,1975
4. Anal warts and anal coitus;Oriel;Br. J. Vener. Dis.,1971
5. Rectal and pharyngeal gonorrhea in homosexual man;Owen;JAMA,1972