1. Department of General Paediatrics, Adolescent Medicine and Neonatology Medical Center‐University of Freiburg, Faculty of Medicine Freiburg Germany
2. Center for Microscopy and Image Analysis, University of Zurich Zurich Switzerland
3. Division of Metabolism and Children's Research Center University Children's Hospital, University of Zurich Zurich Switzerland
4. Division of Neuropediatrics and Pediatric Metabolic Medicine Center for Child and Adolescent Medicine, University Hospital Heidelberg Heidelberg Germany
5. Department of General Paediatrics, Adolescent Medicine and Neonatology, Laboratory of Clinical Biochemistry and Metabolism Medical Center, University of Freiburg, Faculty of Medicine Freiburg Germany