1. Department of Neurology; Karolinska University Hospital; Stockholm Sweden
2. Department of Clinical Neuroscience; Karolinska Institutet; Stockholm Sweden
3. Department of Neurology; Capio St Göran Hospital; Stockholm Sweden
4. Department of Internal Medicine; Södersjukhuset; Stockholm Sweden
5. Department of Internal Medicine; Danderyd Hospital; Stockholm Sweden
6. Unit of Biostatistics; Institute of Environmental Medicine; Karolinska Institutet; Stockholm Sweden
7. Department of Neuroradiology; Karolinska University Hospital; Stockholm Sweden
8. Department of Medical Biochemistry and Biophysics; Karolinska Institutet; Stockholm Sweden
9. Department of Internal Medicine; Division of Cardiovascular Medicine; University of Michigan Medical School; Ann Arbor MI USA