1. Mayo Clinic, Phoenix, AZ, USA
2. University Hospital of Lund, Lund, Sweden
3. World Health Organization, Regional Office for the Western Pacific, Manila, Philippines
4. World Federation of Neurology, London, UK
5. Saitama International Headache Center, Saitama, Japan
6. Danish Headache Center, University of Copenhagen, Rigshopitalet, Glostrup, Denmark
7. Patient Advocate Foundation, Hampton, VA, USA
8. European Headache Alliance, Brussels, Belgium
9. American Migraine Foundation, Mount Royal, NJ, USA
10. Migraine Association of Ireland, Dublin, Ireland