Affiliation: | 1. The Lancet, London NW1 7BY, UK;2. European Renal Association-European Dialysis and Transplant Association, Ghent University Hospital, Ghent, Belgium;3. European Renal Association-European Dialysis and Transplant Association, Department of Nephrology, Endocrinology and Metabolic Diseases, Medical University of Silesia, Katowice, Poland |