1 Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway.
2 Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway.
3 Hormone Laboratory, Department of Medical Biochemistry and Biochemical Endocrinology and Metabolism Research Group, Oslo University Hospital, Aker, Oslo, Norway.
4 Institute of Clinical Medicine and University of Oslo, Oslo, Norway.
5 Multidisciplinary Laboratory Medicine and Medical Biochemistry, Akershus University Hospital, Lørenskog, Norway.
6 King's BHF Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King's College London, London, UK.
7 Department of Cardiology, Division of Medicine, Akershus University Hospital, Lørenskog, Norway.
8 Department of Heart Disease, Haukeland University Hospital, Bergen, Norway.
9 Department of Clinical Science, University of Bergen, Bergen, Norway.