1. Department of Health Science and Technology Center for Pain and Neuroplasticity School of Medicine Aalborg University Aalborg Denmark
2. Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal Child Health University of Genoa Genoa Italy
3. Department of Health Sciences Section of Biostatistics University of Genoa Genoa Italy
4. Fondazione Don Carlo Gnocchi Milan Italy
5. Headache Centre Department of Medicine and Surgery University of Parma Parma Italy
6. Headache Centre IRCCS Ospedale Policlinico San Martino Genoa Italy
7. Department of Medical Gastroenterology Mech‐Sense Aalborg University Hospital Aalborg Denmark