1. Department of Cardiology Vaasa Central Hospital Vaasa Finland
2. Department of Neurology Vaasa Central Hospital Vaasa Finland
3. Department of Biostatistics University of Turku Turku Finland
4. Department of Clinical Physiology and Nuclear Medicine Turku University Hospital, University of Turku Turku Finland
5. Department of Radiology Vaasa Central Hospital Vaasa Finland
6. Division of Medicine Turku University Hospital, University of Turku Turku Finland