1. Cairo University
2. Urology Unit, Department of Surgery, School of Medical Sciences, Universiti Sains Malaysia ; Department of Urology, Hospital Pengajar Universiti PUTRA Malaysia
3. Department of Urology, Hospital Pengajar Universiti PUTRA Malaysia ; Department of Urology, Faculty of Medicine and Health Sciences, Universiti PUTRA Malaysia
4. Urology Unit, Department of Surgery, School of Medical Sciences, Universiti Sains Malaysia
5. Urology Unit, Department of Surgery, Hospital Universiti Sains Malaysia
6. Urology Unit, Department of Surgery, School of Medical Sciences, Universiti Sains Malaysia ; Urology Unit, Department of Surgery, Hospital Universiti Sains Malaysia