Affiliation: | 1. Department of Thoracic and Vascular Surgery Vaasa Central Hospital, Vaasa, Finlandpertti.loponen@pp.inet.fi;3. Department of Thoracic and Vascular Surgery Vaasa Central Hospital, Vaasa, Finland;4. Department of Cardiology, Vaasa Central Hospital, Vaasa, Finland;5. Department of Anaesthesiology, Vaasa Central Hospital, Vaasa, Finland;6. School of Public Health, University of Tampere, Tampere, Finland;7. Heart Center, Department of Cardiac Surgery, Tampere University Hospital, Tampere, Finland |