1. Department of Internal Medicine Hamad Medical Corporation Doha Qatar
2. Department of cardiology Alkhor HospitalHamad Medical Corporation Doha Qatar
3. Department of Gastroenterology and Hepatology Alkhor HospitalHamad Medical Corporation Doha Qatar
4. Department of General Medicine Alkhor HospitalHamad Medical Corporation Doha Qatar
5. Department of Medical Oncology National Center for Cancer Care and ResearchHamad Medical Corporation Doha Qatar