1. 4th Department of Medical Oncology, Hygeia Hospital, Athens, Greece
2. 2nd Department of Urology, School of Medicine, Sismanoglio Hospital, National and Kapodistrian University of Athens, Athens, Greece
3. 2nd Department of Medical Oncology, General Oncology Hospital of Kifissia ‘Agioi Anargyroi’, Athens, Greece
4. Department of Urology, Al Zahraa Hospital, University Medical Center, Beirut, Lebanon