1. Division of Child Neurology and Metabolic Medicine, Centre for Child and Adolescent Medicine University Hospital Heidelberg Heidelberg Germany
2. Department of Pediatrics, Center for Lysosomal and Metabolic Diseases Erasmus MC University Medical Center Rotterdam The Netherlands
3. Department of Pediatrics University Medical Center Hamburg‐Eppendorf Hamburg Germany
4. Department of Pediatrics and Adolescent Medicine University Medical Centre Göttingen Göttingen Germany
5. Division of Metabolism and Children's Research Center University Children's Hospital Zurich Switzerland
6. Department of General Pediatrics, Center for Pediatrics and Adolescent Medicine University Hospital of Freiburg Freiburg Germany