1. University of Colorado Anschutz Medical Campus, Aurora, Colorado
2. National Jewish Health, Denver, Colorado
3. Department of Biostatics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado
4. Department of Medicine, Morehouse School of Medicine, Atlanta, Georgia
5. Marsico Lung Institute/Cystic Fibrosis Research Center, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
6. Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, Ann Arbor, Michigan
7. VA Ann Arbor Healthcare System, Ann Arbor, Michigan
8. Division of Pulmonary and Critical Care Medicine, University of Nebraska, Omaha, Nebraska
9. Department of Medicine, Columbia University Medical Center, New York, New York
10. Center for Genomics and Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, North Carolina
11. Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, Utah
12. Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
13. Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
14. Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and Cardiovascular Research Institute, University of California San Francisco, School of Medicine, San Francisco, California; and
15. Department of Medicine, Weill Cornell Medical College, New York-Presbyterian Hospital/Weill Cornell Medical Center, New York, New York