1. Research Unit of Surgery, Anesthesia and Intensive Care, Department of Surgery, Oulu University Hospital and Medical Research Center Oulu, University of Oulu, Oulu, Finland
2. Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, Oulu Center for Cell-Matrix Research, University of Oulu, Oulu, Finland
3. Department of Cardiology, Oulu University Hospital and Medical Research Center Oulu, University of Oulu, Oulu, Finland
4. Department of Cardiac Surgery, Heart and Lung Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
5. Heart Center, Turku University Hospital, University of Turku, Turku, Finland