1. ESPN/ERA-EDTA Registry, Department of Medical Informatics, Academic Medical Center, Amsterdam, the Netherlands
2. Department of Paediatric Nephrology, G Gaslini Hospital, Genoa, Italy
3. Pediatric Nephrology Unit, IRCCS Policlinico Maggiore Hospital Foundation, Milan, Italy
4. Department of Paediatric Nephrology, Bristol Royal Hospital for Children, Bristol, UK
5. Department of Pediatrics, University Hospital Motol, Charles University, 2nd Medical School, Prague, Czech Republic
6. Department of Nephrology & Kidney Transplantation, The Children's Memorial Health Institute, Warsaw, Poland
7. Pediatric Nephrology Unit, Robert Debré Hospital, Paris, France
8. Pediatric Dialysis Unit, University Hospital Centre Zagreb, Zagreb, Croatia
9. Department of Pediatrics, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
10. Department of Paediatric Nephrology, University Children's Hospital Basel, Basel, Switzerland
11. Department of Paediatric Nephrology, University of Heidelberg Center for Pediatrics and Adolescent Medicine, Heidelberg, Germany