1. Department of Neurology Albert Einstein College of Medicine and Montefiore Headache Center; Bronx NY USA
2. Department of Epidemiology and Population Health; Albert Einstein College of Medicine; Bronx NY USA
3. Montefiore Medical Center; Bronx NY USA
4. Vector Psychometric Group, LLC; Chapel Hill NC USA
5. Avanir Pharmaceuticals, Inc.; Aliso Viejo CA USA
6. Thomas Jefferson University; Philadelphia PA USA