Atan, Ali Re: Wespes E, Rammal A, Christian G. Sildenafil non-responders: haemodynamic and morphometric studies. Eur urol 2005;48:136-9. [electronic resource] - European urology Dec 2005 - 1061; author reply 1062 p. digital Publication Type: Comparative Study; Letter; Comment ISSN: 0302-2838 Standard No.: 10.1016/j.eururo.2005.09.007 doi Subjects--Topical Terms: AdultDose-Response Relationship, DrugDrug Administration ScheduleErectile Dysfunction--diagnostic imagingHemodynamics--physiologyHumansImpotence, Vasculogenic--diagnosisMaleMiddle AgedPiperazines--therapeutic usePurinesRisk AssessmentSildenafil CitrateSulfonesTreatment FailureUltrasonography, Doppler