1. Institute for Experimental Medical Research, Oslo University Hospital Ullevaal;
2. Center for Heart Failure Research, University of Oslo;
3. Bjørknes College;
4. Department of Pharmacology, University of Oslo and Oslo University Hospital Rikshospitalet;
5. Departments of 5Cardiology and
6. Cardiothoracic Surgery, Oslo University Hospital Ullevaal; and
7. Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway