1 Department of General Pediatrics, Adolescent Medicine and Neonatology, Medical Center, University of Freiburg, Faculty of Medicine, Mathildenstr. 1, 79106, Freiburg, Germany.
2 Department of Internal Medicine IV, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany.
3 Olga Children's Hospital, Department of Pediatric Nephrology, Klinikum Stuttgart, Stuttgart, Germany.
4 University Children's Hospital Marburg, Philipps-University, Marburg, Germany.
5 Paediatrics I, University Children's Hospital, Tübingen, Germany.
6 University Children's Hospital, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
7 KfH-Nierenzentrum für Kinder und Jugendliche beim Clementine-Kinderhospital, Frankfurt, Germany.
8 Department of General Pediatrics, University Children's Hospital, Münster, Germany.
9 Department of Pediatrics I, University Children's Hospital of Heidelberg, Heidelberg, Germany.
10 KfH Center of Pediatric Nephrology, Children's Hospital Munich Schwabing, Munich, Germany.
11 Dr. v. Hauner Children's Hospital, Ludwig Maximilians University, Munich, Germany.
12 Department of Pediatrics, General Hospital, Celle, Germany.
13 Department of Paediatric Kidney, Liver and Metabolic Diseases, Paediatric Research Center, Hannover Medical School Children's Hospital, Hannover, Germany.
14 Department of General Pediatrics, Adolescent Medicine and Neonatology, Medical Center, University of Freiburg, Faculty of Medicine, Mathildenstr. 1, 79106, Freiburg, Germany. [email protected].
15 Department of Internal Medicine IV, Medical Center, University of Freiburg, Faculty of Medicine, Freiburg, Germany. [email protected].