1. Center for Interstitial and Rare Lung Diseases, Pneumology, Thoraxklinik, University of Heidelberg, Heidelberg, Germany;
2. German Center for Lung Research, Heidelberg, Germany;
3. Department of Medicine, University of Colorado, Denver, Colorado;
4. Department of Respiratory Medicine, University of Patras, Patras, Greece;
5. Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of California Davis, Sacramento, California;
6. Interstitial Lung Disease Unit, Royal Brompton Hospital, London, United Kingdom;
7. Fibrosis Research Group, National Heart and Lung Institute, Imperial College London, London, United Kingdom;
8. Policy Analysis, Inc., Brookline, Massachusetts;
9. F. Hoffmann-La Roche, Ltd., Basel, Switzerland; and
10. Hastings Center for Pulmonary Research and Division of Pulmonary, Critical Care, and Sleep Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California