J Pediatr Hematol Oncol 2020 Aug 26. Epub 2020 Aug 26.
Departments of *Paediatric Haematology and Oncology ∥Immunology ¶Pathology, Oslo University Hospital, Oslo Departments of †Medicine ‡Medical Genetics, Haukeland University Hospital, Bergen §Section of Medical Genetics, Department of Laboratory Medicine, Telemark Hospital Trust, Skien #Department of Biosciences, University of Bergen, Bergen, Norway.