1. Second Department of Surgery, Sismanoglio General Hospital of Athens, 15126 Athens, Greece
2. Department of Orthopedics and Traumatology, ‘251’ Hellenic Air Force General Hospital of Athens, 11525 Athens, Greece
3. Second University Department of Urology, National and Kapodistrian University of Athens School of Medicine, Sismanoglio General Hospital of Athens, 15126 Athens, Greece
4. Department of Basic Medical Sciences, Laboratory of Biology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
5. Department of Clinical Therapeutics, National and Kapodistrian University of Athens School of Medicine, Alexandra Hospital, 11528 Athens, Greece