1. Department of Nephrology, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
2. Renal Division, Hospital of the Ludwig Maximilans University , Munich , Germany
3. Department of Health Sciences, University of Milan, Renal Division, ASST Santi Paolo e Carlo , Milan , Italy
4. Department of Internal Medicine IV, Renal and Hypertensive Disease, University Medical Center , Homburg, Saar , Germany
5. Department of Nephrology, Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Pierre-Benite, University of Lyon , France
6. Department of Nephrology, IIS-Fundacion Jimenez Diaz- UAM , Madrid , Spain
7. Department of Medicine, Universidad Autonoma de Madrid , Madrid , Spain
8. Department of Nephrology, Hospital Vall d'Hebron, Barcelona, Vall d'Hebron Research Institute (VHIR) , Barcelona , Spain
9. Department of Internal Medicine I and Comprehensive Heart Failure Center, University Hospital Würzburg , Würzburg , Germany