[1] Southampton Univ Hosp, NIHR Resp Biomed Res Unit, Southampton, Hants, England
[2] Univ Southampton, Inst Sound & Vibrat Res, Southampton, Hants, England
[3] Kings Coll Hosp London, London, England
[4] Southampton Univ Hosp NHS Fdn Trust, Southampton, Hants, England
[5] Univ Modena & Reggio Emilia, Ctr Rare Lung Dis, Modena, Italy
[6] Univ Southampton, Acad Unit Clin & Expt Sci, Fac Med, Southampton, Hants, England
[7] Univ Hosp Parma, Parma, Italy
[8] Imperial Coll London, Royal Brompton Hosp, London, England
[9] Imperial Coll London, Natl Heart & Lung Inst, London, England
[10] Univ Southampton, Southampton, Hants, England