1. The Specialty Hospital, Clinic of Neurosurgery, Amman, Jordan

2. Jordan University of Science and Technology Faculty of Medicine, Department of Radiology, Irbid, Jordan

3. The Specialty Hospital, Clinic of Anaesthesiology and Reanimation, Amman, Jordan

4. Jordan University of Science and Technology Faculty of Medicine, Department of Neurology, Irbid, Jordan

5. Jordan University of Science and Technology Faculty of Medicine, Department of Accident and Emergency, Irbid, Jordan