1. Department of Medical Science and Division of Hematology, University Hospital, Uppsala, Sweden;
2. Regional Cancer Centre, Uppsala-Örebro, Sweden;
3. Department of Hematology, University Hospital, Örebro, Sweden;
4. Department of Hematology, Karolinska University Hospital and Department of Medicine, Karolinska Institutet, Stockholm, Sweden;
5. Department of Hematology, Sahlgrenska University Hospital, Göteborg, Sweden;
6. Department of Hematology, University Hospital, Linköping, Sweden;
7. Department of Hematology and Coagulation, Skåne University Hospital, Lund, Sweden;
8. Department of Hematology, University Hospital, Umeå, Sweden;
9. Department of Hematology, Sunderby-Luleå Hospital, Luleå, Sweden; and
10. Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden