1. Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
2. Division of Haematology, Department of Medicine at Huddinge, Karolinska Institutet, 171 77 Stockholm, Sweden
3. Unit of Haematology, Karolinska University Hospital, 171 76 Stockholm, Sweden
4. Pathology and Cancer, Karolinska University Hospital, 141 86 Stockholm, Sweden