1. Department of Respiratory Medicine Zealand University Hospital Naestved Naestved Denmark
2. Institute for Regional Health Research University of Southern Denmark Odense M Denmark
3. Department of Respiratory Medicine Zealand University Hospital Roskilde Roskilde Denmark
4. Palliative Unit Copenhagen University Hospital Herlev Herlev Denmark
5. The Research Unit for General Practice and Section of General Practice Department of Public Health University of Copenhagen Copenhagen K Denmark