1. Department of Neurology, Charité – Universitätsmedizin Berlin, Berlin, Germany
2. Center for Stroke Research Berlin (CSB), Charité – Universitätsmedizin, Berlin, Germany
3. Department of Neurology, CHU Montpellier, Gui de Chauliac Hospital, Montpellier, France
4. Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
5. Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
6. School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
7. Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
8. Division of Translational Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
9. Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
10. Emergency Headache Center, Department of Neurology, Lariboisière Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
11. Clinical Research and Epidemiology Unit, Department of Public Health, CHU Montpellier, Montpellier University, Montpellier, France
12. Charles Coulomb Laboratory, CNRS UMR5221, Montpellier University, Montpellier, France
13. Department of Clinical and Experimental Sciences, Neurology Clinic, University of Brescia, Brescia, Italy