1. Faculty of Medicine Tartous University Tartous Syria
2. Division of Colon and Rectal Surgery, Department of Surgery Mayo Clinic Hospital Rochester Minnesota USA
3. Department of ENT Ibn Al‐Nafees Hospital Damascus Syria
4. MSc Global Public Health Nutrition, School of Life Sciences University of Westminster London UK
5. Doctor of Medicine, Faculty of Medicine AlBaath University Homs Syria
6. Faculty of Medicine University of Damascus Damascus Syria
7. Department of ENT Al Basel Hospital Syria