1. Department of Neuroscience, West Virginia University School of Medicine, Morgantown, WV, USA
2. West Virginia University School of Medicine, Morgantown, WV, USA
3. Rockefeller Neuroscience Institute, West Virginia University, Morgantown, WV, USA
4. Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, USA
5. Department of Neurosurgery, George Washington University Hospital, Washington D.C., USA
6. Department of Neurosurgery, University of Florida, Gainesville, FL, USA
7. Department of Neurosurgery, Baylor Scott and White, Temple, TX, USA