[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] Evangel Krankenhaus Dusseldorf, Childrens Hosp, Dusseldorf, Germany
[6] Marien Hosp Wesel, Res Inst, Dept Pediat, Wesel, Germany
[7] Hamburger Inst Therapieforsch GmbH, Hamburg, Germany
[8] Pneumol Gemeinschaftspraxis & Studienzentrum KPPK, Koblenz, Germany
[9] Ambulante Pneumol Allergiezentrum, Stuttgart, Germany
[10] Univ Hosp Essen, Ruhrlandklin, Dept Pulm Med, Essen, Germany
[11] Univ Bielefeld, Kinderzentrum Bethel, Evangel Klinikum Bethel, Bielefeld, Germany
[12] Mainz Univ Hosp, Dept Pulm, Mainz, Germany
[13] Thoraxklin Heidelberg, Mainz, Germany
[14] IKF Pneumol Mainz, Mainz, Germany