1 Department of Nephrology, University Medical Center, Utrecht, The Netherlands.
2 Department of Renal Medicine, Karolinska University Hospital, Stockholm, Sweden.
3 Department of Health, Medicine and Caring Sciences, Stockholm and Division of Diagnostics and Specialist Medicine, Linköping University, Linköping, Sweden.
4 Department of Health Sciences, University of Milan, Renal Division, ASST Santi Paolo e Carlo, Milan, Italy.
5 Internal Medicine IV, Renal and Hypertensive Disease, University Medical Center, Homburg, Saar, Germany.
6 Department of Nephrology, Dialysis, Nutrition, Centre Hospitalier Lyon Sud, Pierre Benite Cedex, France.
7 Department of Nephrology, University Medical Centre Groningen, University Hospital Groningen, Groningen, The Netherlands.
8 Department of Nephrology and Renal Transplantation, Patras University Hospital, Patras, Greece.
9 Division of Nephrology, Ambroise Paré University Hospital, APHP, Boulogne-Billancourt/Paris, France.
10 Centre for Research in Epidemiology and Population Health (CESP), INSERM UMRS 1018, Université Paris-Saclay, Université Versailles Saint Quentin (UVSQ), Villejuif, France.
11 1st Department of Internal Medicine, Third Faculty of Medicine, Charles University, Faculty Hospital Královské Vinohrady, Prague, Czech Republic.
12 Department Nephrology, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Nephrology Research Group, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain.
13 Glasgow Renal and Transplant Unit, Queen Elizabeth University Hospital, Glasgow, UK.
14 CNR-IFC, c/o Ospedali Riuniti, Reggio Calabria, Italy.