EFFICACY OF SILDENAFIL 100 MG ON DEMAND IN PATIENTS UNDERGOING BILATERAL NERVE-SPARING RADICAL PROSTATECTOMY IS BASED ON PRECISE PREDICTING FACTORS - Montorsi, F.; Zanni, G.; Salonia, A.; Gallina, A.; Briganti, A.; Barbieri, L.; Dehò, F.; Suardi, N.; Fabbri, F.; Farina, E.; Rigatti, P. (European Urology Supplements, 2006)