1. Dietetic Department , Birmingham Women’s and Children’s Hospital, Steelhouse Lane , Birmingham B4 6NH , UK
2. Birmingham Women’s and Children’s Hospital , Birmingham , UK
3. Centro de Genética Médica , Centro Hospitalar Universitário do Porto – CHUP , Porto , Portugal
4. Unit for Multidisciplinary Research in Biomedicine, Abel Salazar Institute of Biomedical Sciences , University of Porto – UMIB/ICBAS/UP , Porto , Portugal
5. Centro de Referência na área de Doenças Hereditárias do Metabolismo , Centro Hospitalar Universitário do Porto – CHUP , Porto , Portugal
6. Centre de référence des maladies héréditaires du métabolisme , Hôpital Necker Enfants Malades , Paris , France
7. Unidad de Enfermedades Metabolicas, Servicio de Pediatria, Hospital Ramon y Cajal , Madrid , Spain
8. Children Hospital Bambino Gesù , Division of Artificial Nutrition , Rome , Italy
9. Univerisity Hospital Zurich , Zurich , Switzerland
10. Metabolic Center , University Hospitals Leuven and KU Leuven , Leuven , Belgium
11. Addenbrooke’s Hospital , Cambridge , UK
12. Evelina London Children’s Hospital , Guy’s and St. Thomas’ NHS Foundation Trust , London , UK
13. Unit of Nutrition and Metabolopathies , Hospital La Fe , Valencia , Spain
14. University of Groningen, University Medical Center Groningen , Groningen , The Netherlands
15. Hôpital Universitaire des Enfants, Reine Fabiola , Bruxelles , Belgium
16. Center of Metabolic Diseases , University Hospital , Antwerp , Belgium
17. University Hospital Ghent , Ghent , Belgium
18. Department of Pediatrics, Regional Centre for Newborn Screening, Diagnosis and Treatment of Inherited Metabolic Diseases and Congenital Endocrine Diseases , University Hospital of Verona , Verona , Italy
19. Great Ormond Street Hospital for Children NHS Foundation Trust , London , UK
20. Dr. von Hauner Children’s Hospital , Munich , Germany
21. Hospital Pediátrico , Centro Hospitalar e Universitário de Coimbra, EPE , Coimbra , Portugal
22. Division of Inherited Metabolic Diseases, Department of Pediatrics , University Hospital of Padova , Padua , Italy
23. Reference Center for Inborn Errors of Metabolism, Department of Pediatrics , Children’s University Hospital , Nancy , France
24. Metabolic Centre of Vienna , Vienna , Austria
25. Nottingham University Hospitals , Nottingham , UK
26. Charles Dent Metabolic Unit National Hospital for Neurology and Surgery , London , UK
27. Emma Children’s Hospital, AMC Amsterdam , Amsterdam , The Netherlands
28. Bristol Royal Hospital for Children , University Hospitals Bristol NHS Foundation Trust , Bristol , UK
29. Radboud University Medical Center , Nijmegen , The Netherlands
30. CHU Angers , Angers , France
31. Haukeland University Hospital , Bergen , Norway
32. Wilhelmina Children’s Hospital , University Medical Centre Utrecht , Utrecht , The Netherlands
33. Institute of Mother and Child , Warsaw , Poland
34. Centre de Compétence de L’Hôpital des Enfants de Toulouse , Toulouse , France
35. Oslo University Hospital , Oslo , Norway
36. University Children’s Hospital Zurich , Zurich , Switzerland
37. Ernährungsmedizinische Beratung , Universitätsklinik für Kinder- und Jugendheilkunde , Salzburg , Austria
38. Clinic of Paediatric Kidney, Liver and Metabolic Diseases, Medical School Hannover , Hannover , Germany
39. University Children’s Hospital , Munster , Germany
40. Centre for Health Technology and Services Research (CINTESIS) , Porto , Portugal
41. Bradford Teaching Hospital NHS Foundation Trust , Bradford , UK
42. Department of Paediatrics of the University Clinics Leipzig , University of Leipzig , Leipzig , Germany
43. Royal Aberdeen Children’s Hospital , Aberdeen , Scotland
44. Centre de Reference des Maladies Héréditaires du Métabolisme du Pr. B. Chabrol CHU Timone Enfant , Marseille , France
45. Department of General Pediatrics, Neonatology and Pediatric Cardiology , University Children’s Hospital, Heinrich Heine University , Düsseldorf , Germany
46. University Hospital of Wales , Cardiff , UK
47. Children’s Hospital , University Hospital , Lund , Sweden
48. Alder Hey Children’s Hospital NHS Foundation Trust , Liverpool , UK
49. Amsterdam UMC , Amsterdam , The Netherlands
50. University Hospitals Birmingham NHS Foundation Trust , Birmingham , UK
51. Maastricht University Medical Centre+ (MUMC+) , Maastricht , The Netherlands
52. Centro Hospitalar São João – Unidade de Doenças Metabólicas , Porto , Portugal
53. National University Hospital , Copenhagen , Denmark
54. Central Manchester University Hospitals NHS Foundation Trust , Manchester , UK
55. Sheffield Children’s Hospital , Sheffield , UK