[1] Royal Brompton Hosp, NIHR Resp Clin Res Facil, London, England
[2] Imperial Coll London, Natl Heart & Lung Inst, Fibrosis Res Grp, London, England
[3] Royal Prince Alfred Hosp, Dept Resp Med, Camperdown, NSW, Australia
[4] Univ Sydney, Med Sch, Camperdown, NSW, Australia
[5] Univ Colorado, Dept Med, Sch Med, Aurora, CO USA
[6] Heidelberg Univ, Member German Ctr Lung Res, Thoraxklin, Ctr Interstitial & Rare Lung Dis, Heidelberg, Germany
[7] Heidelberg Univ, Member German Ctr Lung Res, Thoraxklin, Dept Pulmonol & Crit Care Med, Heidelberg, Germany
[8] Columbia Univ, Med Ctr, Div Pulm Allergy & Crit Care Med, New York, NY USA
[9] Univ Hosp Bellvitge, Inst Invest Biomed Bellvitge IDIBELL, Barcelona, Spain
[10] Ctr Invest Biomed Red Enfermedades Resp CIBERES, Madrid, Spain
[11] F Hoffmann La Roche Ltd, Basel, Switzerland
[12] Louis Pradel Hosp, Natl Reference Ctr Rare Pulm Dis, Lyon, France
[13] Univ Claude Bernard Lyon 1, Hosp Civils Lyon, Lyon, France