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