1. Central Osthrobotnian Hospital, Department of Cardiology, 67200 Kokkola, Finland
2. Oulu University Hospital, Department of Anesthesiology, 90029 Oulu, Finland
3. MRC Oulu, Research Group of Surgery, Anesthesiology and Intensive Care Medicine, University of Oulu, 90220 Oulu Finland
4. Center for Life Course Health Researc, University of Oulu, 90220 Oulu, Finland
5. Oulunkaari Health Center, 91100 Ii, Finland