1. Department of Immunology; Genetics; and Pathology; Rudbeck Laboratory; Uppsala University; Uppsala; Sweden
2. Department of Medical Biosciences; Umeå University; Umeå; Sweden
3. Department of Medicine; Clinical Epidemiology Unit; Karolinska Institutet; Stockholm; Sweden
4. Department of Hematology; Rigshospitalet; Copenhagen; Denmark
5. Department of Laboratory Medicine; Stem Cell Center; Hematology and Transplantation; Lund University; Lund; Sweden