1 From the Division of Neurology (J.S., A.W.), Children's Hospital of Philadelphia, PA; Warren Alpert Medical School of Brown University (J.S.), Providence, RI; and Departments of Neurology and Pediatrics (A.W.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia. waldman@chop.edu.
2 From the Division of Neurology (J.S., A.W.), Children's Hospital of Philadelphia, PA; Warren Alpert Medical School of Brown University (J.S.), Providence, RI; and Departments of Neurology and Pediatrics (A.W.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia.