[1] ISGlobal, Barcelona, Spain
[2] Univ Pompeu Fabra, Barcelona, Spain
[3] CIBERESP, Barcelona, Spain
[4] Thorax Res Fdn, Athens, Greece
[5] KULeuven, Dept Rehabil Sci, Leuven, Belgium
[6] Dept Rehabil Sci, Leuven, Belgium
[7] Univ Zurich, Epidemiol Biostat & Prevent Inst, Zurich, Switzerland
[8] Univ Kiel, Kiel, Germany
[9] Tel Aviv Sourasky Med Ctr, Ctr Study Movement Cognit & Mobil, Tel Aviv, Israel
[10] Imperial Coll London, London, England
[11] Robert Bosch Gesell Med Forsch, Stuttgart, Germany
[12] Northumbria Univ Newcastle, Newcastle Upon Tyne, Tyne & Wear, England
[13] Univ Coll Dublin, Dublin, Ireland
[14] MerckKGaA, Darmstadt, Germany
[15] Lungen Clin, Pulm Res Inst, Grosshansdorf, Germany
[16] Newcastle Univ, Translat & Clin Res Inst, Fac Med Sci, Newcastle Upon Tyne, Tyne & Wear, England
[17] Newcastle Univ, Natl Inst Hlth & Care Res NIHR, Newcastle Biomed Res Ctr BRC, Newcastle Upon Tyne, Tyne & Wear, England
[18] Newcastle Upon Tyne Hosp NHS Fdn Trust, Newcastle Upon Tyne, Tyne & Wear, England