1 Department of Cardiology, Division of Medicine, Akershus University Hospital, Lørenskog, Norway; Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway. Electronic address: p.l.myhre@medisin.uio.no.
2 Department of Cardiology, Division of Medicine, Akershus University Hospital, Lørenskog, Norway; Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
3 Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; Division for Research and Innovation, Akershus University Hospital, Lørenskog, Norway.