1. Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
2. Department of Ophthalmology, Aalborg University Hospital, Aalborg University, Aalborg, Denmark.
3. Mech-Sense, Department of Gastroenterology and Hepatology, Aalborg University Hospital & Clinical Institute, Aalborg University, Aalborg, Denmark.
4. Steno Diabetes Center North, Aalborg, Denmark.
5. Department of Endocrinology, Aalborg University Hospital, Aalborg, Denmark.
6. Steno Diabetes Center Copenhagen, Gentofte, Denmark.
7. Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark.