Affiliations: Division of Neurology, Department of Pediatrics, Children’s Hospital of Philadelphia, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
Note: [] Address for correspondence: Brenda E. Porter, Division of Neurology, Department of Pediatrics, Children’s Hospital of Philadelphia, The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104-4318, USA. Tel.: +1 215 590 1719; Fax: +1 215 590 3779; E-mail: porterb@email.chop.edu.