1. Departments of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
2. Departments of Radiology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
3. Departments of Neurosurgery, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
4. Departments of Public Health Sciences, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
5. Departments of Pharmacology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
6. Departments of Kinesiology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA, USA
7. Department of Statistics, Pennsylvania State University, University Park, PA, USA