1. Neuropsychiatry Unit, Department of Pediatrics, Faculty of Medicine, Sohag University, Sohag, Egypt
2. Neurology Unit, Department of Pediatrics, Faculty of Medicine, Al-Azhar University, Assiut, Egypt
3. Metabolic and Genetic Unit, Department of Pediatrics, Faculty of Medicine, Sohag University, Sohag, Egypt
4. Department of Radio-diagnosis, Faculty of Medicine, Al-Azhar University, Assiut, Egypt
5. Neurology Unit, Department of Pediatrics, Faculty of Medicine, Aswan University, Aswan Egypt
6. Department of Medical Biochemistry, Faculty of Medicine, South Valley University, Qena, Egypt
7. Department of Pediatrics, Faculty of Medicine, Sohag University, Sohag, Egypt