1. Pneumology and Respiratory Critical Care Medicine, Centre for Interstitial and Rare Lung Diseases, Thoraxklinik, University of Heidelberg, 69126 Heidelberg, Germany
2. Translational Lung Research Centre Heidelberg (TLRCH), Member of the German Centre for Lung Research (DZL), 69120 Heidelberg, Germany
3. Institute of Health Economics and Healthcare Management, Helmholtz Centre Munich GmbH, German Research Centre for Environmental Health, Member of the German Centre for Lung Research (DZL), Comprehensive Pneumology Centre Munich (CPCM), 85764 Neuherberg, Germany
4. Institute of Health Economics and Healthcare Management, Munich Centre of Health Sciences, Ludwig Maximilian University of Munich, 80336 Munich, Germany
5. Association of German Pneumologists (BdP), 86150 Augsburg, Germany
6. Medical Clinic II, University of Regensburg and Klinikum Donaustauf, 93093 Donaustauf, Germany
7. Institute of Lung Research, 10405 Berlin, Germany
8. Medical Clinic V, University Clinic, Ludwig-Maximilians-University Munich, Comprehensive Pneumology Centre Munich (CPC-M), Member of the German Centre for Lung Research (DZL), 81377 München, Germany
9. Patient Support Group Lungenfibrose e.V., 45242 Essen, Germany
10. Department of Translational Pulmonology, University of Heidelberg, 69120 Heidelberg, Germany
11. Division of Paediatric Pulmonology & Allergy and Cystic Fibrosis Center, Department of Paediatrics III, University of Heidelberg, 69120 Heidelberg, Germany
12. Medical Clinic II, University Hospital Giessen, Universities of Giessen and Marburg Lung Centre (UGMLC), Member of the German Centre for Lung Research (DZL), 35392 Giessen, Germany
13. Medical Clinic V (Pneumology), Cardiothoracic Centre, Campus Fulda, University Medicine Marburg, 36043 Fulda, Germany