1. Faculty ofMedicine Aleppo University Aleppo Syria
2. Faculty of Medicine Syrian Private University Damascus Syria
3. Department of Pulmonology Aleppo University Aleppo Syria
4. Department of Internal Medicine Syrian Private University Damascus Syria
5. Department of Medicine District Headquarters Teaching Hospital Faisalabad Pakistan
6. Faculty of Medicine Alexandria university Alexandria Egypt
7. Department of Obstruction and Gynecology NV University Khartoum Sudan