1. Department of Neurology, Odense University Hospital and Southern University of Denmark, Odense, Denmark
2. Freelance Methodologist, Metodekonsulent Callesen, Denmark
3. Danish Headache Center, Department of Neurology, Rigshospital-Glostrup, Denmark
4. Danish Knowledge Center on Headache Disorders, Danish Headache Center, Rigshospital-Glostrup, Denmark
5. Freelance and Danish Health Authority Search Specialist, Denmark
6. Osteopath, Danske Osteopater and Q KLINIK, Denmark
7. The Multidisciplinary Pain Center, Rigshospitalet, Denmark
8. Chiropractic Knowledge Hub, Odense, Denmark
9. Doktor Jensen Akupunkturklinik, Fredericia, Denmark