1. Faculty of Medicine, Damascus University, Damascus, Syria
2. Division of Neurology, Department of Internal Medicine, Faculty of Medicine, Damascus University, Damascus, Syria
3. Department of Radiotherapy, Bairouni Hospital, Damascus, Syria
4. Department of Pathology, Alassad University Hospital, Damascus, Syria
5. Department of Pathology, Mowasat University Hospital, Damascus, Syria
6. Syrian College of Pathologists, Syria
7. Board of Trustees, Kalamoon University, Damascus, Syria