1. Department of Neurology Hospital of South West Jutland Esbjerg Denmark
2. Research Unit of Health Science Hospital of South West Jutland Esbjerg Denmark
3. Department of Regional Health Research University of Southern Denmark Odense Denmark
4. Department of Psychology University of Southern Denmark Odense Denmark
5. Department of Cardiology Odense University Hospital Odense Denmark
6. Danish Headache Centre, Department of Neurology Rigshospitalet‐Glostrup, University of Copenhagen Denmark