University of California, San Francisco (UCSF) - Weill Institute for Neurosciences, Loma Linda University - Department of Pediatrics, University of California, San Francisco (UCSF) - Weill Institute for Neurosciences, NYU Grossman - Department of Neurology, Harvard University - Department of Neurology, Harvard University - Department of Neurology, Harvard University - Department of Neurology, Harvard University - Department of Neurology, University of California, San Diego (UCSD) - Department of Neurology, University of Alabama at Birmingham - Department of Nursing, Texas Children’s Hospital - Department of Neurology, Washington University in St. Louis - Department of Neurology, Mayo Clinic - Department of Neurology, University of Utah - Department of Neurology, University of Colorado, Aurora - Department of Neurology & Pediatrics, State University of New York (SUNY) - Department of Neurology, University of Utah - Department of Pediatrics, University of Utah - Department of Pediatrics and University of California, San Francisco (UCSF) - Weill Institute for Neurosciences