1. Roskilde-Køge Hospitals and The Research Unit for General Practice and Section of General Practice Department of Public Health; University of Copenhagen; Denmark
2. Haematological Unit for Nursing Research; Department of Haematology; Roskilde - Køge Hospitals; Roskilde Denmark
3. Section of Nursing Institute of Public Health; Aarhus University; Aarhus Denmark
4. Roskilde and Køge Hospitals and Institute of Regional Health Services Research; University of Southern Denmark; Roskilde Denmark