[1] Santa Chiara Reg Hosp, Dept Urol, Largo Medaglie dOro 9, I-38123 Trento, Trento, Italy
[2] Santa Maria Annunziata Hosp, Sexually Transmitted Dis Ctr, I-50012 Florence, Italy
[3] Santa Chiara Reg Hosp, Dept Microbiol, I-38123 Trento, Trento, Italy
[4] Santa Chiara Reg Hosp, Dept Lab Med, I-38123 Trento, Trento, Italy
[5] Univ Florence, Dept Crit Care Med & Surg, Div Anat Pathol, I-50100 Florence, Italy
[6] Univ Giessen, Univ Klinikum Giessen & Marburg GmbH, Klin & Poliklin Urol Kinderurol & Androl, D-35390 Giessen, Germany
[7] South Pest Hosp, Dept Urol, H-1051 Budapest, Hungary
[8] Newcastle Univ, Inst Cellular Med, Newcastle Upon Tyne NE1 4XE, Tyne & Wear, England
[9] Lund Univ, Skane Univ Hosp, Dept Urol, S-20502 Malmo, Sweden
[10] Oslo Univ Hosp, Dept Urol, N-0271 Oslo, Norway
[11] Univ Florence, Dept Urol, I-50012 Florence, Italy