1. Ferkauf Graduate School of Psychology, Yeshiva University, New York, NY, USA
2. Saul R Korey, Department of Neurology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY, USA
3. Montefiore Medical Center, Bronx, NY, USA
4. UCSF Pediatric Headache, Departments of Neurology and Pediatrics, San Francisco, CA, USA
5. Mercy Research, Chesterfield, MO, USA
6. Mercy Clinic Headache Center, Chesterfield, MO, USA