Affiliations

• ¹ Department of Heart Disease, Haukeland University Hospital, Bergen, Norway. Electronic address: Helga.Bergljot.Midtbo@helse-bergen.no.
• ² Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway; Clinic of Cardiology, St. Olavs University Hospital, Trondheim, Norway.
• ³ Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway.
• ⁴ Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway; Clinic of Cardiology, St. Olavs University Hospital, Trondheim, Norway; Department of Medicine, Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway.