1. Departments of Clinical Medicine and Endocrinology; Aalborg University and Aalborg University Hospital; Aalborg Denmark
2. Research Centre for Prevention and Health; The Capital Region of Denmark; Glostrup Denmark
3. Department of Endocrinology; Bispebjerg University Hospital; Copenhagen Denmark
4. Diagnostic Centre; Region Hospital Silkeborg; Silkeborg Denmark
5. Department of Gastroenterology; Slagelse Hospital; Slagelse Denmark