Affiliation: | 1. Department of Cardiology, Oslo University Hospital Ullev?l, , Norway;2. Center for Heart Failure Research, University of Oslo, , Norway;3. Faculty of Medicine, University of Oslo, , Norway;4. Section for Nuclear Medicine, Oslo University Hospital Ullev?l, , Norway;5. Biostatistic and Epidemiology Unit, Oslo University Hospital Ullev?l, , Norway;6. Center for Clinical Heart Research, Oslo University Hospital Ullev?l, , Norway |