1. Department of Pediatrics University of Kansas Medical Center Kansas City Kansas USA
2. Department of Psychology Bowling Green State University Bowling Green Ohio USA
3. Division of Behavioral Medicine and Clinical Psychology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA
4. Department of Pediatrics University of Cincinnati College of Medicine Cincinnati Ohio USA
5. Headache Center Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA
6. Division of Neurology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA