1 Pediatric Emergency Medicine, Children's Hospital at Lehigh Valley Hospital, Allentown, PA.
2 Department of Pediatrics, Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA.
3 Division of Pediatric Emergency Medicine, Department of Pediatrics, Kosair Children's Hospital, University of Louisville, Louisville, KY.
4 Division of Pediatric Neurology, Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO.
5 Division of Pediatric Emergency Medicine, Department of Pediatrics, Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA.