1. Department of Endocrinology and
2. Novo Nordisk Foundation Centre for Basic Metabolic Research and
3. Institute of Sports Medicine Copenhagen, Bispebjerg Hospital, Copenhagen, Denmark
4. Department of Surgical Gastroenterology, Hvidovre Hospital, Copenhagen, Denmark
5. Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
6. Department of Clinical Metabolomics, Rigshospitalet, Copenhagen, Denmark