[1] Kerckhoff Heart Rheuma & Thorac Ctr, Dept Pneumol, Bad Nauheim, Germany
[2] UGMLC, Justus Liebig Univ Giessen, Dept Internal Med, Klinikstr 36, D-35392 Giessen, Germany
[3] German Ctr Lung Res DZL, Klinikstr 36, D-35392 Giessen, Germany
[4] Univ Hosp Heidelberg, Thorax Clin, Ctr Pulm Hypertens, Heidelberg, Germany
[5] Ernst Moritz Arndt Univ Greifswald, Dept Internal Med, Greifswald, Germany
[6] Kerckhoff Heart Rheuma & Thorac Ctr, Dept Vasc Surg, Bad Nauheim, Germany
[7] Hannover Med Sch, Dept Resp Med, Hannover, Germany
[8] Cologne Univ, Heart Ctr, Dept Internal Med 3, Cologne, Germany
[9] Cologne Univ, Heart Ctr, CCRC, Cologne, Germany
[10] Imperial Coll London, Dept Med, London, England
[11] pro samed GmbH, Berlin, Germany
[12] Univ Hosp Carl Gustav Carus, Dept Internal Med 1, Dresden, Germany
[13] Univ Hamburg, Dept Pneumol, Hamburg, Germany
[14] Univ Med Ctr Regensburg, Div Pneumol, Dept Internal Med 2, Regensburg, Germany
[15] Robert Bosch Hosp, Dept Pneumol & Resp Med, Gerlingen, Germany
[16] DRK Kliniken Berlin, Dept Cardiol, Berlin, Germany
[17] Univ Leipzig, Dept Pneumol, Leipzig, Germany