1. Faculty of Medicine, Alexandria University Alexandria Egypt
2. Department of Medicine Rochester Regional Health/Unity Hospital Rochester New York USA
3. Faculty of Medicine, Minia University Minya Egypt
4. Faculty of Medicine, Aleppo University Aleppo Syria
5. Nursing Department Hamad Medical Corporation Doha Qatar
6. John H. Stroger, Jr. Hospital of Cook County Chicago Illinois USA
7. Department of Internal Medicine Hamad Medical Corporation Doha Qatar
8. Cardiovascular Perfusion Department Upstate Medical University Syracuse New York USA