1. Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
2. Department of Urology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
3. Third Orthopaedic Department, National and Kapodestrian University of Athens, KAT General Hospital, 14561 Athens, Greece
4. Department of Microbiology, University Hospital of Ioannina, 45500 Ioannina, Greece
5. Department of Andrology, Binh Dan Hospital, Ho Chi Minh City 70000, Vietnam
6. Division of Urology, Department of Surgery, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan