| Affiliation: | 1. Heart Center, Turku University Hospital and University of Turku, Turku, Finland;2. Department of Medicine, Turku University Hospital and University of Turku, Turku, Finland;3. Department of Surgery, Turku University Hospital and University of Turku, Turku, Finland;4. Department of Surgery, Oulu University Hospital and University of Oulu, Oulu, Finland;5. Heart Center, Kuopio University Hospital and University of Eastern Finland, Kuopio, Finland;6. Heart and Lung Center, Helsinki University Hospital and University of Helsinki, Finland |
