1. Department of Neurology Amsterdam UMCUniversity of Amsterdam Amsterdam The Netherlands
2. Department of Neurology InselspitalBern University HospitalUniversity of Bern Bern Switzerland
3. Department of Vascular Medicine Amsterdam UMCUniversity of Amsterdam Amsterdam The Netherlands
4. Department of Neurology Helsinki University Hospital and University of Helsinki Helsinki Finland
5. Department of Neurology Albert Schweitzer Hospital Dordrecht The Netherlands
6. National Institute for Health Research, University College London Hospitals (UCLH), Biomedical Research Centre London UK
7. Department of Hematology and Central Hematology Laboratory Inselspital Bern University HospitalUniversity of Bern Bern Switzerland
8. Department of Neurology Sahlgrenska University Hospital Gothenburg Sweden
9. Department of Clinical Neuroscience Institute of Neuroscience and Physiology Sahlgrenska Academy at University of Gothenburg Sweden
10. Department of Neurosciences and Mental Health Neurology Service, Hospital de Santa Maria/CHULN University of Lisbon Lisbon Portugal
11. Department of Internal Medicine and Radboud Institute of Health Sciences (RIHS) Radboud University Medical Center Nijmegen The Netherlands