1 Department of General Pediatrics, Division of Inherited Metabolic Diseases, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany. Stefan_Koelker@med.uni-heidelberg.de.
2 Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Reference Center for Inherited Metabolic Disease, Necker-Enfants Malades University Hospital and IMAGINE Institute, Paris, France.
9 School of Medicine University Hospital Center Zagreb and University of Zagreb, Zagreb, Croatia.
10 Medical University of Innsbruck, Clinic for Pediatrics I, Inherited Metabolic Disorders, Innsbruck, Austria.
11 Institute of Mother and Child Care "Alfred Rusescu", Bucharest, Romania.
12 Division of Metabolism and Children's Research Centre, University Children's Hospital Zurich, Steinwiesstraße 75, 8032, Zurich, Switzerland.
13 Hospital Materno-Infantil (HRU Carlos Haya), Málaga, Spain.
14 Department of General Pediatrics, Division of Inherited Metabolic Diseases, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, 69120, Heidelberg, Germany.
15 Centre for Inherited Metabolic Diseases, Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
16 Centre de Référence des Maladies Héréditaires du Métabolisme, Service de Neurologie, Hôpital d'Enfants, CHU Timone, Marseilles, France.