1. Department of Public Health, University of Copenhagen, København K, Denmark;
2. Department of Public Health Programmes, Randers Regional Hospital, Randers NØ, Denmark;
3. Department of Pathology, Aalborg University Hospital, Aalborg, Denmark;
4. Department of Pathology, Lillebælt Hospital, Vejle, Denmark;
5. Department of Gynaecology and Obstectrics, Odense University Hospital, Odense C, Denmark;
6. Department of Pathology, Randers Regional Hospital, Randers NØ, Denmark;
7. Research Unit of General Practice and Department of Clinical Medicine, Aalborg University, Aalborg, Denmark;
8. Department of Surgical Pathology, Zealand University Hospital, Roskilde, Denmark;
9. Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus N, Denmark;
10. Pathology Department, Aarhus University Hospital, Aarhus C, Denmark;
11. Pathology Department, Copenhagen University Hospital, Hvidovre, Denmark;
12. Institute of Regional Health Research, University of Southern Denmark, Odense M, Denmark