| Authors: |
Raunbak SM; Danish Center for Health Services Research, Department of Clinical Medicine, Faculty of Health, Aalborg University, Aalborg, Denmark. smr@dcm.aau.dk., Christensen JJ; Danish Center for Health Services Research, Department of Clinical Medicine, Faculty of Health, Aalborg University, Aalborg, Denmark., Weinreich UM; Department of Respiratory Diseases, Aalborg University Hospital, Aalborg, Denmark.; Department of Clinical Medicine, Faculty of Health, Aalborg University, Aalborg, Denmark., Johnsen SP; Danish Center for Health Services Research, Department of Clinical Medicine, Faculty of Health, Aalborg University, Aalborg, Denmark., Udsen FW; Danish Center for Health Services Research, Department of Clinical Medicine, Faculty of Health, Aalborg University, Aalborg, Denmark. |