1 Division of Pediatric Neurology, Department of Neurology, Wake Forest University/Brenner Children's Hospital, Winston-Salem, North Carolina. Electronic address: emalamud@wakehealth.edu.
2 Division of Neuromuscular Disease, Department of Neurology, Wake Forest University, Winston-Salem, North Carolina.
3 Division of Pediatric Neurology, Department of Neurology, Wake Forest University/Brenner Children's Hospital, Winston-Salem, North Carolina.