1. Department of Urology Aristotle University School of Medicine Thessaloniki Greece
2. Laboratory of Spermatology, Department of Urology Ioannina University School of Medicine Ioannina Greece
3. Department of Urology University General Hospital of Heraklion, University of Crete Medical School Heraklion Greece
4. Department of Ob/Gyn Ioannina University School of Medicine Ioannina Greece
5. 2nd Department of Urology, School of Medicine National and Kapodistrian University of Athens Athens Greece
6. Department of Obstetrics and Gynecology, School of Medicine National and Kapodistrian University of Athens Athens Greece
7. Division of Urology, Department of Surgery Tottori University Faculty of Medicine Yonago Japan