1. Division of NephrologyDepartment of Internal MedicineUniversity of Groningen, University Medical Center Groningen GroningenThe Netherlands
2. Division of Endocrinology, Department of Internal Medicine University of Groningen, University Medical Center Groningen Groningen The Netherlands
3. National Institute for Health Research Bristol Biomedical Research Centre University Hospitals Bristol NHS Foundation Trust and University of Bristol Bristol UK
4. Translational Health Sciences, Musculoskeletal Research Unit, Bristol Medical School, Southmead Hospital University of Bristol Bristol UK
5. Division of Pathology, Department of Pathology and Medical Biology, University Medical Center Groningen University of Groningen Groningen The Netherlands
6. Laboratory Corporation of America® Holdings (LabCorp) Morrisville NC USA
7. Department of Epidemiology, University Medical Center Groningen University of Groningen Groningen The Netherlands