1. Department of Hematology; Roskilde University Hospital; Roskilde Denmark
2. The Research Unit for General Practice and Section of General Practice; Department of Public Health; University of Copenhagen; Copenhagen Denmark
3. Department of Hematology; Odense University Hospital; Odense Denmark
4. Division of Hematology and Medical Oncology; Mayo Clinic Cancer Center; Scottsdale USA
5. The Elective Laboratory of the Capital Region; Copenhagen Denmark
6. Department of Hematology; Copenhagen University Hospital; Copenhagen Denmark.