1. Department of Endocrinology, Copenhagen University Hospital, Bispebjerg, Denmark
2. Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
3. Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
4. Department. of Clinical Biochemistry, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
5. Novo Nordisk Foundation Center for Basic Metabolic Research and Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
6. Department of Endocrinology, Copenhagen University Hospital Hvidovre, Copenhagen, Denmark
7. Core Biochemical Assay Laboratory, Cambridge University Hospitals National Health Service Foundation Trust, Cambridge, United Kingdom
8. Department of Clinical Biochemistry, Copenhagen University Hospital Hvidovre, Copenahagen, Denmark