[1] Campus Biomed Univ Rome, Dept Urol, Via Alvaro del Portillo 9 200, I-00128 Rome, Italy
[2] Univ Hosp Southampton, Dept Urol, Southampton, Hants, England
[3] Autonomous Univ Barcelona, Puigvert Fdn, Dept Urol, Barcelona, Spain
[4] Klina Hosp, Dept Urol, Brasschaat, Belgium
[5] Univ Hosp Ghent, Dept Urol, Ghent, Belgium
[6] Univ Zurich, Dept Urol, Univ Hosp Zurich, Zurich, Switzerland
[7] Luigi Sacco Univ Hosp, Dept Urol, ASST Fatebenefratelli Sacco, Milan, Italy
[8] Istanbul Univ, Dept Urol, Istanbul Sch Med, Istanbul, Turkey
[9] Marmara Univ, Dept Urol, Sch Med, Istanbul, Turkey
[10] Manipal Acad Higher Educ, Kasturba Med Coll Manipal, Dept Urol, Manipal, Karnataka, India
[11] Portes Provence Hosp, Serv Urol, Montelimar, France
[12] Univ Cagliari, Cagliari, Italy
[13] Sacred Heart Catholic Univ, IRCCS A Gemelli Univ Polyclin Fdn, Dept Radiol, Rome, Italy