1. Department of General Internal Medicine; Inselspital; University Hospital of Bern; Bern Switzerland
2. Department of Clinical Research; Clinical Trial Unit (CTU); University of Bern; Bern Switzerland
3. Service of Endocrinology, Diabetes and Metabolism; University Hospital of Lausanne; Lausanne Switzerland
4. University of Cambridge Metabolic Research Laboratories; Wellcome Trust-MRC Institute of Metabolic Science; Addenbrooke's Hospital; Cambridge UK
5. Department of Public Health and Primary Care and Department of Clinical Chemistry and Laboratory Medicine; Leiden University Medical Center; Leiden The Netherlands
6. Department of Public Health and Primary Care; University of Cambridge; Addenbrooke's Hospital; Cambridge UK
7. University Clinic of Hematology and Central Hematology Laboratory; Inselspital; University Hospital of Bern; Bern Switzerland