1. Faculty of Medicine University Hospital of Cologne Children's and Adolescents' Hospital Pediatric Nephrology University of Cologne Cologne Germany
2. Department of Pediatrics University Children's Hospital Heidelberg Heidelberg Germany
3. Department of Nephrology, Kidney Transplantation & Hypertension The Children's Memorial Health Institute Warsaw Poland
4. Department of Pediatric Nephrology Amsterdam University Medical Center Emma Children's Hospital Amsterdam The Netherlands
5. Department of Pediatric Nephrology School of Medicine Hacettepe University Ankara Turkey
6. 1st Pediatric Department Pediatric Nephrology Unit Hippokration General Hospital Aristotle University Thessaloniki Greece
7. Department of Nephrology and Transplantation Children's Health Ireland Dublin Ireland
8. Pediatric Nephrology Department Children's Hospital University Medical Centre Ljubljana Ljubljana Slovenia
9. Department of Pediatrics II University Hospital of Essen University Duisburg‐Essen Essen Germany
10. UCL Great Ormond Street Institute of Child Health NIHR Great Ormond Street Hospital Biomedical Research Centre London UK
11. Department of Pediatrics University Medical Center Hamburg‐Eppendorf University of Hamburg Hamburg Germany
12. Pediatric Nephrology and Rheumatology Department Ghent University Hospital Ghent Belgium
13. Department of Pediatrics 2nd Medical Faculty Charles University Prague Prague Czech Republic
14. Department of Pediatrics Dr. von Hauner Children's Hospital University Hospital LMU Munich Munich Germany
15. Pediatric Renal Transplant Unit Bambino Gesù Children's Research Hospital IRCCS Rome Italy