1. From the Department of Neurology, Boston Children’s Hospital, Harvard Medical School, MA (L.L.L.)
2. Division of Neurology, Departments of Neurology and Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia (L.A.B.)
3. Division of Paediatric Neurology, University Children’s Hospital Bern, University of Bern, Switzerland (M.S.)
4. French Center for Pediatric Stroke, Pediatric Neurology, APHP University Hospital Necker-Enfants Malades, Paris, France (M.K.)
5. Department of Neurology, Royal Children’s Hospital, Murdoch Children’s Research Institute, University of Melbourne, Parkville, Australia (M.T.M.).