1 Department of General Pediatrics, Division of Inherited Metabolic Diseases, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, D-69120, Heidelberg, Germany. Stefan.Koelker@med.uni-heidelberg.de.
2 Servicio de Neurologia and CIBERER, ISCIII, Hospital San Joan de Deu, Barcelona, Spain.
3 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.
4 Centre for Inherited Metabolic Diseases, Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
19 Children's National Medical Center, 111 Michigan Avenue, N.W., Washington, DC, 20010, USA.
20 Metabolic Unit, Department of Pediatrics, Hospital Clinico Universitario de Santiago de Compostela, Santiago de Compostela, Spain.
21 University Hospital Vrije Universiteit Brussel, Bruxelles, Belgium.
22 Centre de Référence des Maladies Héréditaires du Métabolisme de l'Enfant et de l'Adulte, Hôpital Jeanne de Flandre, Lille, France.
23 Department of General Pediatrics, Division of Inherited Metabolic Diseases, University Children's Hospital Heidelberg, Im Neuenheimer Feld 430, D-69120, Heidelberg, Germany.
24 Department of Laboratory Diagnostics, The Children's Memorial Health Institute, Warsaw, Poland.
25 Metabolic Unit Great Ormond Street Hospital and Institute for Child Health, University College London, London, UK.
26 N.I.R.M.A.N., Om Rachna Society, Vashi, Navi Mumbai, Mumbai, India.
27 Charles Dent Metabolic Unit, National Hospital for Neurology and Neurosurgery, London, UK.
28 Department of Pediatrics, Kumamoto University Hospital, Kumamoto City, Japan.
29 Klinik für Kinder- und Jugendmedizin, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany.
30 Hôpital Robert Debré, Université de Paris, Paris, France.
31 Hospital Universitario Materno-Infantil de Canarias, Unit of Pediatric Gastroenterology, Hepatology and Nutrition, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.
32 University Hospital Center Zagreb, Zagreb, Croatia.
33 Service Gastroentérologie and Hépatologie Pédiatrique, Cliniques Universitaires St Luc, Université Catholique de Louvain, Bruxelles, Belgium.
34 Evelina Children's Hospital, St Thomas' Hospital, London, UK.
35 Inborn Metabolic Disease Unit, Hospital Virgen de la Arrixaca de Murcia, El Palmar, Spain.
36 Manchester Academic Health Science Centre, Willink Biochemical Genetics Unit, Genetic Medicine, University of Manchester, Manchester, UK.