1. Heart CenterKuopio University Hospital Kuopio Finland
2. Department of Medicine, Center for Medicine and Clinical ResearchUniversity of Eastern Finland, Kuopio University Hospital P.O. Box 100 FIN‐70029 KYS Kuopio Finland
3. Faculty of Health Sciences, Institute of Clinical Medicine, Internal MedicineUniversity of Eastern Finland Kuopio Finland
4. Helsinki University Central Hospital Helsinki Finland
5. Heart Center Co., Institute of Biomedical TechnologyTampere University Hospital, University of Tampere Tampere Finland
6. Savonlinna Central Hospital Savonlinna Finland
7. Heart Center Co.Tampere University Hospital Tampere Finland
8. Vaasa Central Hospital Vaasa Finland
9. Central Finland Central Hospital Jyväskylä Finland