1. Department of Neurology, Faculty of Medicine, University of Alexandria, Medical Campus Champlion st. Azareeta , Alexandria, Egypt
2. Department of Critical Care Medicine, Faculty of Medicine, University of Alexandria, Medical Campus Champlion st. Azareeta , Alexandria, Egypt
3. Intensive Care Unit, AbuKir Hospital, Almzleghan st. , Tosson , AbuKir , Alexandria, Egypt