1. Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham2UAB Lung Health Center, University of Alabama at Birmingham3UAB Lung Imaging Core, University of Alabama at Birmingham
2. UAB Lung Imaging Core, University of Alabama at Birmingham4Department of Radiology, University of Alabama at Birmingham
3. Quantitative Imaging Laboratory, National Jewish Health, Denver, Colorado
4. VIDA Diagnostics, Coralville, Iowa
5. Department of Radiology, National Jewish Health, Denver, Colorado
6. Department of Biostatistics and Bioinformatics, National Jewish Health, Denver, Colorado
7. Quantitative Imaging Laboratory, National Jewish Health, Denver, Colorado7Department of Radiology, National Jewish Health, Denver, Colorado
8. Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
9. Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego
10. Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
11. Department of Radiology and Biomedical Engineering, University of Iowa Carver College of Medicine, Iowa City
12. Division of Pulmonary and Critical Care Medicine, Morehouse School of Medicine, Atlanta, Georgia
13. Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham2UAB Lung Health Center, University of Alabama at Birmingham3UAB Lung Imaging Core, University of Alabama at Birmingham14Veterans Affairs Medical Center, Birming