1. Clinical Research, Trauma &Vascular Surgery, Hamad General Hospital, Doha, Qatar
2. Clinical Medicine, Weill Cornell Medical College, Doha, Qatar
3. Injury Prevention, Trauma Surgery, Hamad General Hospital, Doha, Qatar
4. Department of Surgery, Westchester Medical Center and New York Medical College, Valhalla, NY, USA
5. Department of Epidemiology & Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
6. Department of Surgery, Trauma Surgery, Hamad General Hospital, Doha, Qatar