1. Division of Medical Imaging and Technology; Department of Clinical Science; Intervention and Technology; Karolinska Institutet; Stockholm Sweden
2. Department of Radiology; Karolinska University Hospital; Stockholm Sweden
3. The Sahlgrenska Academy; Department of Neuroscience and Physiology; Section of Clinical Neuroscience and Rehabilitation; University of Gothenburg; Gothenburg Sweden
4. Department of Neurology; Haukeland University Hospital; Bergen Norway
5. Department of Clinical Neuroscience; Karolinska Institutet; Stockholm Sweden
6. Department of Neurology; Karolinska University Hospital; Stockholm Sweden