1. Department of Neuropsychiatry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
2. Department of Medical physiology, Faculty of Medicine, Suez Canal University, Suez Canal, Egypt
3. Department of pulmonology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
4. Elmamoura Psychiatric Hospital, Alexandria, Egypt
5. Alkopty hospital Alexandria, Egypt
6. Department of Community Medicine, Faculty of Medicine, Alexandria University, Alexandria, Egypt