Affiliation: | 1. Department of Cardiothoracic Surgery, Ullev?l University Hospital, Oslo, Norway;2. Faculty of Medicine, University of Oslo, Oslo, Norway;3. Center for Heart Failure Research, University of Oslo, Oslo, Norway;4. Department of Cardiology, Ullev?l University Hospital, Oslo, Norway;5. Department of Cardiac Surgery, The Royal Brompton Hospital, London, UK;6. Institute for Experimental Medical Research, Ullev?l University Hospital, Oslo, Norway |