[1] Univ Nottingham, Div Therapeut & Mol Med, Queens Med Ctr, Nottingham NG7 2UH, England
[2] Univ Nottingham, Resp Biomed Res Unit, Nottingham NG7 2UH, England
[3] Univ Lyon 1, Reference Ctr Rare Pulm Dis, F-69365 Lyon, France
[4] CHU Vaudois, Clin Interstitial & Rare Lung Dis, Dept Resp Med, CH-1011 Lausanne, Switzerland
[5] Univ Klinikum Essen, Ruhrlandklin, Essen, Germany
[6] Osped San Giuseppe AFAR, Unit Pneumol, Milan, Italy
[7] St Marguerite Univ Hosp, Div Pulm Med & Thorac Surg, Marseille, France
[8] Univ Hosp, Pulm Med & Lung Transplant Program, Zurich, Switzerland
[9] Univ Paris, Serv Radiol, Hop Avicenne, Bobigny, France
[10] Graz Univ, Inst Pathol, A-8010 Graz, Austria
[11] Univ Verona, Policlin B Roma, I-37100 Verona, Italy
[12] Royal Sussex Cty Hosp, Brighton BN2 5BE, E Sussex, England