[1] Norwegian Heart & Lung Patient Org, LHL Hlth Roros, Roros, Norway
[2] St Olavs Univ Hosp, Lung Dept, Trondheim, Norway
[3] Norwegian Univ Technol & Sci, Dept Circulat & Med Imaging, KG Jebsen Ctr Exercise Med, Trondheim, Norway
[4] Norwegian Univ Technol & Sci, Inst Social Work & Hlth Sci, Ctr Hlth Promot, Trondheim, Norway
[5] Ctr Expertise Chron Organ Failure, Program Dev Ctr, CIRO, Horn, Netherlands
[6] MUMC, Dept Resp Med, Maastricht, Netherlands
[7] Mid Sweden Univ, Dept Engn & Sustainable Dev, Ostersund, Sweden
[8] St Georges Univ London, Div Clin Sci, London, England