1. From the Department of Neurology (H.J.F., N.K.H.), University of California, San Francisco
2. Department of Pediatrics (H.J.F.), University of California, San Francisco
3. Department of Radiology (N.S.), University of Colorado, Denver
4. Department of Biostatistics and Epidemiology (N.K.H.), University of California, San Francisco
5. Division of Neuroradiology, Department of Radiology, Stanford University, CA (B.J., M.W.)
6. Department of Neurology, University of Washington, Seattle (C.A.-L.)
7. Department of Pediatrics (T.J.B.), University of Colorado, Denver
8. Center for Pediatric Neurosciences, Neurological Institute, Cleveland Clinic, OH (N.R.F.)
9. Department of Neurology, Children’s Hospital of Philadelphia, Perelman School of Medicine of the University of Pennsylvania (R.I.)
10. Department of Paediatrics, Royal Children’s Hospital, Murdoch Children’s Research Institute, University of Melbourne, Victoria, Australia (M.T.M.)
11. Department of Pediatrics and Child Health, Children’s Hospital, University of Manitoba, Winnipeg, Canada (M.F.R.)
12. INSERM, UMR1059 Sainbiose, University of Lyon, CHU Saint-Étienne, France (S.C.)
13. Department of Pediatric Neurology, University Children’s Hospital, University of Bern, Switzerland (M.S.)
14. Department of Epidemiology, Mailman School of Public Health (M.S.V.E.), Columbia University, New York, NY
15. Department of Neurology, Vagelos College of Physicians and Surgeons (M.S.V.E.), Columbia University, New York, NY
16. Division of Neurology, Hospital for Sick Children, Toronto, Canada (G.A.D.).