1. Urology Unit, Department of Neurosciences, Reproductive Sciences and Odontostomatology , University of Naples “Federico II” , Naples , Italy
2. Department of Urology , AORN Antonio Cardarelli , Naples , Italy
3. Department of Surgical and Biomedical Science , Andrological and Urogynecological Clinic, Santa Maria Terni Hospital, University of Perugia , Terni , Italy