1. Newborn Screening, Clinical Chemistry and Pharmacology Lab, IRCCS Meyer Children’s University Hospital, 50139 Florence, Italy
2. Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50139 Florence, Italy
3. Biochemical Sciences, Viapath, Guys & St Thomas’ NHSFT, London SE1 7EH, UK
4. GKT School of Medical Education, Kings College London, London SE1 1UL, UK
5. Department of Medical Biochemistry, Immunology & Toxicology, University Hospital Wales, Cardiff CF14 4XW, UK
6. School of Medicine, Cardiff University, University Hospital Wales, Cardiff CF14 4XW, UK
7. Laboratory of Metabolic Disorders and Newborn Screening Center of Eastern Andalusia, Málaga Regional University Hospital, Institute of Biomedical Research in Malaga (IBIMA-Plataforma BIONAND), Avenida Arroyo de los Angeles s/n, 29011 Malaga, Spain
8. Biochemical Genetics, Genetics and Molecular Pathology, SA Pathology, Women’s & Children’s Hospital, Adelaide 5043, Australia
9. Sheffield Children’s NHS Foundation Trust, Western Bank, Sheffield S10 2TH, UK
10. International Society for Neonatal Screening, Reigerskamp 273, 3607 HP Stichtse Vecht, The Netherlands