1. Trauma and Vascular Surgery Section, Department of Surgery, Hamad General Hospital (HGH), Doha, Qatar
2. Anaesthesiology Department, HGH, Doha, Qatar
3. Clinical Research, Trauma and Vascular Surgery Section, HGH, Doha, Qatar
4. Clinical Medicine, Weill Cornell Medical College, Doha, Qatar
5. Vascular Surgery Section, Department of Surgery, HGH, Doha, Qatar
6. Cardiothoracic Surgery, Heart Hospital, Hamad Medical Corporation, Doha, Qatar