Incrocci, Luca Incidence, etiology, and therapy for erectile dysfunction after external beam radiotherapy for prostate cancer. [electronic resource] - Urology Jul 2002 - 1-7 p. digital Publication Type: Comparative Study; Journal Article; Review ISSN: 1527-9995 Standard No.: 10.1016/s0090-4295(02)01659-x doi Subjects--Topical Terms: AdultAgedErectile Dysfunction--drug therapyHumansIncidenceMaleMiddle AgedPiperazines--therapeutic useProstatic Neoplasms--radiotherapyPurinesRadiotherapy--adverse effectsRadiotherapy, Computer-Assisted--adverse effectsRadiotherapy, Conformal--adverse effectsRadiotherapy, High-Energy--adverse effectsSildenafil CitrateSulfones