Vandenbussche, N.; Headache Group, Department of Basic and Clinical Neuroscience, King’s College London, and NIHR-Wellcome Trust King’s Clinical Research Facility, King’s College Hospital, Denmark Hill, London, SE5 9PJ, United Kingdom
Laterza, D.; Department of Neuroscience, St. Agostino Estense Hospital, University of Modena and Reggio Emilia, via P. Giardini 1355, Modena, 41100, Italy
Lloyd, J.; Headache Research-Wolfson CARD, King’s College London, London, United Kingdom
Lupi, C.; Headache Centre, Careggi University Hospital, Health Sciences Department, University of Florence, Viale Pieraccini 6, Florence, 50139, Italy
Tischler, H.; Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
Toom, K.; Department of Neurology, Tartu University Clinics, Tartu, Estonia, Estonian Headache Society, Tartu, Estonia
Vandervorst, F.; Department Neurology, UZ Brussel, Jette, Belgium
Quintana, S.; Headache Center, Department of Medicine and Surgery, University of Parma, Parma, Italy
Paemeleire, K.; Department of Neurology, Ghent University Hospital, Corneel Heymanslaan 10, Ghent, B-9000, Belgium
Katsarava, Z.; Evangelical Hospital Unna and University of Duisburg-Essen, Duisburg, Germany