1. COPD Foundation, Washington, District of Columbia;
2. Pulmonary Disease and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota;
3. School of Medicine, New York University, New York, New York;
4. Health Sciences Center, Louisiana State University, New Orleans, Louisiana;
5. Division of Pulmonary and Critical Care, School of Medicine, Oregon Health and Science University, Portland, Oregon;
6. University of Kansas Medical Center, University of Kansas, Kansas City, Kansas;
7. Department of Epidemiology, College of Public Health, University of Kentucky, Lexington, Kentucky;
8. Schmidt Chest Clinic, Intermountain Medical Center, Murray, Utah;
9. Center for Chest Disease, College of Physicians and Surgeons, Columbia University, New York, New York;
10. Division of Pulmonary, Critical Care and Sleep Medicine, School of Medicine, University of Connecticut, Farmington, Connecticut;
11. Pulmonary and Critical Care, Mayo Clinic Florida, Jacksonville, Florida;
12. Section of Pulmonary, Critical Care Medicine, Department of Medicine, Northwell Health, New Hyde Park, New York;
13. San Antonio Veterans Administration, San Antonio, Texas;
14. Health Science Center, University of Texas at Tyler, Tyler, Texas;
15. Section of Pulmonary and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois;
16. Georgetown University Medical Center, Georgetown University, Washington, District of Columbia;
17. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina;
18. Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston, Massachusetts;
19. Department of Infectious Disease, Oregon Health and Science University – Portland State University School of Public Health, Oregon Health and Science University School of Medicine, Portland, Oregon; and
20. Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama;
21. Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania;
22. University of California, San Francisco, San Francisco, California