1. Department of Clinical Biochemistry, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;
2. Department of Pathology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;
3. Department of Surgical Gastroenterology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;
4. Department of Medical Endocrinology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark