C. Asferg, R. Møgelvang, A. Flyvbjerg, A. Frystyk, J.S. Jensen, J.L. Marott, M. Appleyard, P. Schnoh, G.B. Jensen, J. Jeppesen. Copenhagen University Hospital Glostrup, Department of Clinical Physiology and Nuclear Medicine, Glostrup, Denmark, Copenhagen University Hospital Gentofte, Department of Cardiology, Gentofte, Denmark, Aarhus University Hospital Aarhus, Medical Research Laboratories, Clinical Institute and Medical Department M, Aarhus, Denmark, Copenhagen University Hospital Bispebjerg, The Copenhagen City Heart Study, Bispebjerg, Denmark, Copenhagen University Hospital Hvidovre, Department of Cardiology, Hvidovre, Denmark, Copenhagen University Hospital Glostrup, Department of Medicine, Glostrup, Denmark, Faculty of Health Sciences, University of Aarhus, Aarhus, Denmark, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark