1. Brain and Spinal Injury Center, University of California, San Francisco, San Francisco, California.
2. Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco, California.
3. Department of Anatomic Pathology, University of California, San Francisco, San Francisco, California.
4. Surbeck Laboratory of Advanced Imaging, Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California.
5. Department of Psychiatry, University of California, San Francisco, San Francisco, California.
6. Department of Neurological Surgery, University of California, San Francisco, San Francisco, California.
7. Weill Institute for Neuroscience, University of California, San Francisco, San Francisco, California.
8. Kavli Institute of Fundamental Neuroscience, University of California, San Francisco, San Francisco, California.