[1] Int Primary Care Resp Grp, Larbert, Scotland
[2] Univ Edinburgh, Usher Inst, Edinburgh, Scotland
[3] OPRI, Singapore, Singapore
[4] Univ Minho, Life & Hlth Sci Res Inst, Sch Med, Braga, Portugal
[5] Pulmocare Res & Educ Fdn, Pune, India
[6] Kamuzu Univ Hlth Sci, Blantyre, Malawi
[7] Univ Crete, Giofirakia, Greece
[8] Univ Edinburgh, Usher Inst, Ctr Med Informat, Edinburgh, Scotland
[9] Univ Leicester, NIHR Leicester Biomed Res Ctr, Dept Resp Sci, Leicester, England
[10] Imperial Coll Healthcare NHS Trust, London, England
[11] Australian Natl Univ, Coll Hlth & Med, Med Educ Unit, Garran, Australia