1. Head of Urology Department, Zahraa Hospital, University Medical Center, Lebanese University, Beirut, Lebanon
2. Department of Urology, Faculty of Medicine, Lebanese University, Beirut, Lebanon
3. Department of Neurosurgery, Faculty of Medicine, Lebanese University, Beirut, Lebanon
4. 2nd Department of Urology, School of Medicine, Sismanoglio Hospital, National and Kapodistrian University of Athens, Athens, Greece
5. Department of Neurosurgery, Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon