[1] Aarhus Univ Hosp, Dept Resp Dis & Allergy, Norrebrogade 44, DK-8000 Aarhus, Denmark
[2] Univ Hosp Leuven, Dept Resp Dis, Interstitial Lung Dis & Lung Transplant Unit, Leuven, Belgium
[3] Katholieke Univ Leuven, Dept Clin & Expt Med, Div Resp Dis, Lab Resp Dis,Lung Transplantat Unit, Leuven, Belgium
[4] Ctr Hosp & Univ Coimbra, Pneumol Unit A, Coimbra, Portugal
[5] Manchester Univ Fdn Trust, North West Interstitial Lung Dis Unit, Manchester, Lancs, England
[6] Erasmus MC, Inst Canc, Dept Pulm Med, Rotterdam, Netherlands
[7] Heidelberg Univ, Thoraxklin, Ctr Interstitial & Rare Lung Dis Pneumol & Resp C, Heidelberg, Germany
[8] Translat Lung Res Ctr Heidelberg, Heidelberg, Germany
[9] German Ctr Lung Res DZL, Heidelberg, Germany
[10] Aarhus Univ Hosp, Dept Cardiol, Aarhus N, Denmark
[11] Univ Southern Denmark, Hosp Southwest, Unit Thrombosis Res, Esbjerg, Denmark
[12] Univ Helsinki, Helsinki, Finland
[13] Helsinki Univ Hosp, Heart & Lung Ctr, Dept Pulm Med, Helsinki, Finland
[14] Osped GB Morgagni, Dept Dis Thorax, Forli, Italy
[15] Univ Leuven, Translat Res Ctr Gastrointestinal Disorders TARGI, Leuven, Belgium
[16] Univ Leuven, Dept Gastroenterol, Leuven, Belgium
[17] Univ Hosp Rotterdam, Erasmus Med Ctr, Dept Pulm Dis, Rotterdam, Netherlands