[1] Univ Edinburgh, Usher Inst, Edinburgh, Scotland
[2] Whitstable Med Practice, Whitstable, Kent, England
[3] Univ Exeter, Inst Hlth Res, Primary Care Res Grp, Med Sch, Exeter, England
[4] Acle Med Ctr, Norwich, Norfolk, England
[5] Univ Leicester, Coll Life Sci, NIHR Biomed Res Ctr Resp Theme, Dept Resp Sci, Leicester, England
[6] Univ Hosp Leicester NHS Trust, Dept Paediat Resp Med, Leicester, England
[7] CYP Asthma Transformat Black Country Integrated Ca, Wolverhampton, England
[8] Univ Edinburgh, Mol Genet & Populat Hlth Sci, Edinburgh, Scotland
[9] UK Engn Council, London, England
[10] Univ Edinburgh, Usher Inst, Med Sch, Doorway 3,Teviot Pl, Edinburgh EH8 9AG, Scotland