1. Department of Neurology, Danish Headache Center, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
2. Department of Neurology, Charité Universitätsmedizin Berlin, corporate member of Freie Universitä Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
3. Clinician Scientist Program, Berlin Institute of Health at Charité (BIH), Berlin, Germany
4. Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
5. Department of Brain and Spinal Cord Injury, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
6. Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
7. Harvard Medical School, Boston, MA, USA
8. Novartis Pharma AG, Basel, Switzerland