De Panfilis, Giuseppe Relapses after treatment of external genital warts are more frequent in HIV-positive patients than in HIV-negative controls. [electronic resource] - Sexually transmitted diseases Mar 2002 - 121-5 p. digital Publication Type: Journal Article ISSN: 0148-5717 Standard No.: 10.1097/00007435-200203000-00001 doi Subjects--Topical Terms: AIDS-Related Opportunistic Infections--epidemiologyAdultCase-Control StudiesCondylomata Acuminata--epidemiologyFemaleHumansIncidenceItaly--epidemiologyMaleMiddle AgedRecurrenceRisk Factors