1. Department of Vascular Surgery, Hamad General Hospital, Doha, Qatar
2. Cardiology, Faculty of Medicine, Ain-Shams University, Cairo, Egypt
3. Cardiology, Internal Medicine, Ahmed Maher Teaching Hospital, Cairo, Egypt
4. Clinical Medicine, Weill Cornell Medical School, Doha, Qatar
5. Clinical Research, Trauma Surgery, Hamad General Hospital, Doha, Qatar