1. Department of Clinical Biochemistry, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;
2. Steno Diabetes Center, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark;
3. Department of Clinical Physiology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark;
4. Department of Endocrinology, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark;
5. Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark;
6. Department of Endocrinology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark