1. Department of Ophthalmology University of Helsinki and Helsinki University Hospital Helsinki Finland
2. Department of Vascular surgery University of Helsinki and Helsinki University Hospital Helsinki Finland
3. Department of Neurology University of Helsinki and Helsinki University Hospital Helsinki Finland
4. Department of Radiology, HUS Diagnostic Center University of Helsinki and Helsinki University Hospital Helsinki Finland
5. Department of Neuropsychology HUS Neurocenter, University of Helsinki and Helsinki University Hospital Helsinki Finland