1. Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
2. Department of Bioengineering, Temple University, Philadelphia, Pennsylvania, USA
3. College of Rehabilitation Sciences, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
4. School of Medicine, Duke University, Durham, North Carolina, USA
5. National Institutes of Health, National Institute of Neurological Disorders and Stroke, Bethesda, Maryland, USA
6. Bioclinica, Princeton, New Jersey, USA
7. Department of Neurosurgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA