1. Department of Clinical NeuroscienceKarolinska InstitutetStockholmSweden
2. Department of NeuroradiologyKarolinska University HospitalStockholmSweden
3. Division of ImmunologyDepartment of ImmunologyGenetics and PathologyUppsala UniversityUppsalaSweden
4. Department of Materials Science and EngineeringRoyal Institute of TechnologyStockholmSweden