1. AbbVie, Irvine, CA, USA
2. The Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA
3. Brunswick Medical Center, Montreal, QC, Canada
4. Pain Department and FHU InovPain, CHU Nice and Côte Azur University, Nice, France
5. Saitama International Headache Center, Chuo-ku, Saitama City, Japan
6. Institute of Neurology, London, UK
7. Evangelical Hospital Unna, Unna, Germany
8. Department of Neurology, University of Duisburg-Essen, Germany
9. Vedanta Research, Chapel Hill, NC, USA
10. MIST Research, Wilmington, NC, USA