1. Department of Medicine Haukeland University Hospital, Bergen, Norway
2. Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway
3. The National Unit for Newborn Screening, Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
4. Faculty of Medicine, University of Oslo, Oslo, Norway
5. Department of Anesthesiology and Intensive Care, Haukeland University Hospital, Bergen, Norway
6. Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway
7. Section for Hematology, Department of Clinical Science, University of Bergen, Bergen, Norway
8. Department of Haematology, Oslo University Hospital, Oslo, Norway