1. Department of Clinical Biochemistry, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
2. Department of Clinical Biochemistry, Holbaek Hospital, Holbaek, Denmark
3. Department of Clinical Biochemistry, Copenhagen University Hospital Bispebjerg and Frederiksberg, Copenhagen, Denmark
4. The Copenhagen Primary Care Laboratory (CopLab) Database, Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
5. Department of Haematology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark