1. Pediatric Neurology, Wake Forest Baptist Health Medical Center; Winston-Salem NC, USA
2. Department of Neurology, Brigham and Women's Faulkner Hospital; Research Assistant, John R. Graham Headache Center; Boston MA, USA
3. Division of Headache and Pain, Department of Neurology; Brigham and Women's Faulkner Hospital; Boston MA, USA
4. John R. Graham Headache Center, Department of Neurology, Brigham and Women's Faulkner Hospital; Boston MA, USA