1. Department of Endocrinology, Copenhagen University Hospital, Hvidovre, Denmark
2. Department of Biomedical Sciences, SUND, University of Copenhagen, Copenhagen, Denmark
3. Department of Surgical Gastroenterology, Copenhagen University Hospital, Hvidovre, Denmark
4. Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
5. Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Copenhagen, Denmark
6. Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark