1. Department of Neurosurgery Ibn Al‐Nafess Hospital Damascus Syria
2. Faculty of Medicine Aleppo University Aleppo Syria
3. Department of Urology Ibn Al‐Nafess Hospital Damascus Syria
4. Department of Pulmonology Aleppo University Hospital Aleppo Syria
5. Faculty of Medicine Al‐Azhar University Cairo Egypt
6. Department of Internal Medicine Hamad Medical Corporation Doha Qatar
7. Faculty of Medicine Alexandria University Alexandria Egypt