| Affiliation: | 1. Department of Internal Medicine, Meander MC Amersfoort, Amersfoort, The Netherlands;2. Department of Cardiology, UMC Utrecht, Utrecht, The Netherlands;3. Department of Nephrology and Hypertension, UMC Utrecht, Utrecht, The Netherlands;4. Department of Clinical Chemistry, Lange Land Hospital, Zoetermeer, The Netherlands;5. Department of Clinical Chemistry, Meander MC Amersfoort, Amersfoort, The Netherlands;6. Department of Clinical Chemistry, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands;7. Division of Nephrology and Immunology, Department of Medicine, University of Alberta, Edmonton, AB, Canada;8. Department of Nephrology, VU University Medical Center, PO Box 7057, 1007 MB Amsterdam, The Netherlands |
