1 Division of Pediatric Neurology, Department of Pediatrics, University of Utah, Salt Lake City, UT, USA. Electronic address: Melissa.A.Wright@hsc.utah.edu.
2 Service of Neurology, Hospital Clínic, University of Barcelona, Spain; Neuroimmunology Program, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
3 Division of Psychiatry, Mayo Clinic, Jacksonville, FL, USA; Department of Neurology, Mayo Clinic, Jacksonville, FL, USA.
4 Department of Neurology, Mayo Clinic, Jacksonville, FL, USA.
5 Emory University School of Medicine, Children's Healthcare of Atlanta, Department of Pediatrics, Division of Neurology, Atlanta, GA, USA.
6 Department of Neurology, Erasmus MC University Medical Center, Rotterdam, the Netherlands.
7 Department of Neurology, University of Utah, Salt Lake City, UT, USA; George E. Wahlen Veterans Affairs Health Care System, Salt Lake City, UT, USA.