[1] Med Univ Vienna, Univ Hosp Vienna AKH, Dept Pneumol, Vienna, Austria
[2] Ludwig Maximilians Univ LMU Munich, Dept Med 5, Munich, Germany
[3] German Ctr Lung Res DZL, Comprehens Pneumol Ctr CPC M, Munich, Germany
[4] Univ Hosp Bonn, Dept Internal Med Pneumol 2, Bonn, Germany
[5] Univ Hosp Regensburg, Dept Internal Med 2, Regensburg, Germany
[6] Hamburger Inst Therapieforsch GmbH, Hamburg, Germany
[7] Pneumol Gemeinschaftspraxis & Studienzentrum KP, Koblenz, Germany
[8] Ambulante Pneumol Allergiezentrum, Stuttgart, Germany
[9] Med Univ Vienna, Univ Hosp Vienna AKH, Dept Pneumol, Vienna, Austria
[10] Med Univ Vienna, Ctr Med Stat Informat & Intelligent Syst, Sec Med Stat, Vienna, Austria
[11] Univ Hosp Essen, Ruhrlandklin, Dept Pulm Med, Essen, Germany
[12] Univ Bielefeld, Evangel Klinikum Bethel, Kinderzentrum Bethel, Bielefeld, Germany
[13] Mainz Univ Hosp, Dept Pulm, Mainz, Germany
[14] Thoraxklin Heidelberg, Mainz, Germany
[15] IKF Pneumol, Mainz, Germany