1. Departments of Radiology, Pennsylvania State University College of Medicine, Hershey, PA, USA
2. Departments of Neurology, Pennsylvania State University College of Medicine, Hershey, PA, USA
3. Departments of Neural & Behavioral Sciences, Pennsylvania State University College of Medicine, Hershey, PA, USA
4. Unity Rehabilitation and Neurology at Ridgeway, Rochester, NY, USA
5. Departments of Neurosurgery, Pennsylvania State University College of Medicine, Hershey, PA, USA