1Department of Neurology, Danish Headache Centre, Rigshospitalet-Glostrup, University of Copenhagen, Valdemar Hansens Vej 5, 2600 Glostrup, Denmark
2Metodekonsulent Callesen, Åhavevej 26, 8600 Silkeborg, Denmark
3Danish Knowledge Centre on Headache Disorders, Rigshospitalet-Glostrup, University of Copenhagen, Valdemar Hansens Vej 5, 2600 Glostrup, Denmark
4Danish Health Authority, Islands Brygge 67, 2300 Copenhagen S, Denmark
5Department of Neurology, Odense University Hospital and University of Southern Denmark, Sdr. Boulevard 29, 5000 Odense C, Denmark
6Chiropractic Knowledge Hub, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
7Doktor Jensen Akupunkturklinik, Anders Billes Vej 2 B, 7000 Fredericia, Denmark
8Osteopath, Danske Osteopater and Q KLINIK, Finsensvej 42, 2000 Frederiksberg, Denmark
9The Multidisciplinary Pain Center (Section 7612), Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark
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