1. Department of Heart Disease, Haukeland University Hospital, Bergen Hospital Trust , Jonas Lies vei 65 , 5021 Bergen, Norway
2. Department of Clinical Science, University of Bergen, Laboratory Building, Haukeland University Hospital , Jonas Lies vei 87 , 5020 Bergen, Norway
3. Department of Health and Caring Sciences, Western Norway University of Applied Sciences , Inndalsveien 28 , 5063 Bergen, Norway
4. Research and Innovation Department, Førde Hospital Trust , Svanehaugvegen 2 , 6807 Førde, Norway
5. Medical Department, Ålesund Hospital, Møre og Romsdal Hospital Trust , Åsehaugen 5 , 6017 Ålesund, Norway
6. Department of Circulation and Medical Imaging, Norwegian University of Science and Technology , Postboks 8905 , 7491 Trondheim, Norway
7. Faculty of Nursing and Health Sciences, Nord University , Universitetsalléen 11 , 8026 Bodø, Norway
8. Department of Medicine, Drammen Hospital, Vestre Viken Hospital Trust , Dronninggata 41 , 3004 Drammen, Norway
9. Department of Behavioural Medicine, The Faculty of Medicine, University of Oslo , Sognsvannsveien 9 Domus Medica , 0372 Oslo, Norway