1. Division of Child Neurology and Metabolic Medicine, Center for Child and Adolescent Medicine and Dietmar Hopp Metabolic Center University Hospital Heidelberg Heidelberg Germany
2. Division of Pediatric Neurology University Children's Hospital Frankfurt Frankfurt Germany
3. Children's Hospital Reutlingen Klinikum am Steinenberg, Reutlingen Germany
4. Villa Metabolica, Center for Pediatric and Adolescent Medicine Mainz University Medical Center Mainz Germany
5. Department of General Pediatrics, Neonatology, and Pediatric Cardiology University Children's Hospital, Heinrich Heine University Düsseldorf Düsseldorf Germany
6. University Medical Center Hamburg‐Eppendorf University Children's Hospital Hamburg Germany
7. Ulm Department of Pediatric and Adolescent Medicine Ulm University Medical School Ulm Germany
8. Department of General Pediatrics, Adolescent Medicine and Neonatology Medical Center ‐ University of Freiburg, Faculty of Medicine Freiburg Germany