1. Department of Pathology and
2. Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota;
3. Department of Radiology, University of Chicago, Chicago, Illinois;
4. Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Baltimore, Maryland;
5. Division of Pulmonary, Critical Care, and Sleep Medicine, University of Florida, Gainesville, Florida;
6. Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Duke University, Durham, North Carolina;
7. Division of Pulmonary, Critical Care Medicine and Environmental Medicine, Tulane University, New Orleans, Louisiana;
8. Advanced Lung Disease and Lung Transplant Clinic, Inova Fairfax Hospital, Falls Church, Virginia;
9. Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania;
10. Department of Radiology, National Jewish Health, Denver, Colorado;
11. Division of Pulmonary and Critical Care, Department of Medicine, Stanford University, Palo Alto, California;
12. Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Harvard University, Boston, Massachusetts;
13. Department of Pathology, Michigan Medicine, Ann Arbor, Michigan;
14. Division of Pulmonary, Critical Care, and Sleep Medicine, College of Medicine, Medical University of South Carolina, Charleston, South Carolina;
15. Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California;
16. Pulmonary, Critical Care Division, Houston Methodist Hospital and Weill Cornell College of Medicine, Cornell University, Houston, Texas;
17. Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Louisville Health Sciences Center, University of Louisville, Louisville, Kentucky;
18. Department of Internal Medicine, Pulmonary and Critical Care Medicine, Henry Ford Hospital, Detroit, Michigan;
19. Department of Medicine, Columbia University, New York, New York;
20. Pulmonary Fibrosis Foundation, Chicago, Illinois;
21. Division of Pulmonary, Critical Care and Sleep Medicine, Rhode Island Hospital and Warren Alpert Medical School, Brown University, Providence, Rhode Island;
22. Department of Pulmonary and Critical Care Medicine, Kaiser Permanente San Francisco, San Francisco, California; and
23. Department of Medicine, University of California San Francisco, San Francisco, California