1. Danish Headache Center, Department of Neurology, Rigshospitalet‐Glostrup, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
2. Glostrup Research Park, Rigshospitalet‐Glostrup, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
3. Department of Biostatistics, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
4. Functional Imaging Unit, Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark