1. Department of Neurology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands;
2. Department of Neurology, Universitätsklinikum Bonn, Bonn, Germany;
3. Department of Neurology, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy;
4. Second Department of Neurology, School of Medicine and Faculty of Health Sciences, Aristotle University of Thessaloniki, American Hellenic Educational Progressive Association University Hospital, Thessaloniki, Greece;
5. Institute of Experimental Hematology and Transfusion Medicine, Universitätsklinikum Bonn, Bonn, Germany;
6. Department of Neurology and
7. Department of Hematology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; and
8. Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, and
9. Department of Neurosciences and Mental Health, Hospital de Santa Maria, Centro Hospitalar Universitario Lisboa Norte, Universidade de Lisboa, Lisbon, Portugal