[1] Inst Invest Biomed August Pi i Sunyer, Hosp Clin, Barcelona, Spain
[2] Univ Barcelona, Barcelona, Spain
[3] Univ Paris Sud, Le Kremlin Bicetre Serv Pneumol, Ctr Reference Hypertens Pulm Severe, DHU Thorax Innovat,Hop Bicetre, Paris, France
[4] Heidelberg Univ Hosp, Thoraxclin, Ctr Pulm Hypertens, Heidelberg, Germany
[5] Charles Univ Prague, Fac Med 1, Prague, Czech Republic
[6] Charles Univ Prague, Gen Teaching Hosp, Prague, Czech Republic
[7] Cologne Univ, Heart Ctr, Dept Internal Med 3, Cologne, Germany
[8] Cologne Univ, Heart Ctr, Cologne Cardiovasc Res Ctr CCRC, Cologne, Germany
[9] Univ Giessen, Giessen, Germany
[10] Marburg Lung Ctr UGMLC, Giessen, Germany
[11] German Ctr Lung Res DZL, Giessen, Germany
[12] German Rheumatism Res Ctr Berlin, Leibniz Inst, Berlin, Germany
[13] Bayer AG, Global Med Affairs, Berlin, Germany
[14] Hannover Med Sch, Dept Resp Med, Resp Med, Hannover, Germany
[15] Hannover Med Sch, German Ctr Lung Res, Hannover, Germany