1. Heart Center; Turku University Hospital and University of Turku; Turku Finland
2. Heart Center; Kuopio University Hospital; Kuopio Finland
3. Department of Medicine; Keski-Suomi Central Hospital; Jyväskylä Finland
4. Heart Center; Satakunta Central Hospital; Pori Finland
5. Department of Medicine; Turku University Hospital and University of Turku; Turku Finland
6. NeuroCenter, Neurology Department; Kuopio University Hospital; Kuopio Finland