1. Pediatric Headache Program, Division of Neurology Children's Hospital of Philadelphia Philadelphia PA USA
2. Yale New Haven Health/Connecticut Medical Group New Haven CT USA
3. Department of Neurology UCSF Child & Adolescent Headache Program San Francisco CA USA
4. School of Social Policy and Practice University of Pennsylvania Philadelphia PA USA
5. Miles for Migraine Lafayette Hill PA USA
6. Nemours Neurology Headache Program Alfred I. Dupont Hospital for Children Wilmington DE USA
7. Department of Neurology, Perelman School of Medicine University of Pennsylvania Philadelphia PA USA