University of California, San Diego (UCSD) - Department of Neurological Surgery, University of California, San Diego (UCSD) - Department of Neurological Surgery, University of California, San Diego (UCSD) - Division of Regenerative Medicine, University of California, San Diego (UCSD) - Division of Regenerative Medicine, University of California, San Diego (UCSD) - Division of Regenerative Medicine, University of California, San Diego (UCSD) - Department of Anesthesiology and University of California, San Diego (UCSD) - Department of Neurological Surgery