1. Division of Pulmonary, Allergy, and Critical Care Medicine and Lung Health Center
2. University of Alabama at Birmingham Lung Imaging Core
3. Department of Aerospace Engineering, Auburn University, Auburn, Alabama
4. Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, University of California San Francisco, San Francisco, California
5. Department of Biostatistics and Bioinformatics, National Jewish Health, Denver, Colorado
6. Department of Preventive Medicine and
7. Division of Pulmonary, Critical Care, and Occupational Medicine, University of Iowa Hospital, Iowa City, Iowa
8. Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania and
9. Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan
10. Department of Electrical and Computer Engineering, University of Alabama at Birmingham, Birmingham, Alabama