1. Division of Pulmonary and Critical Care Medicine and
2. Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
3. Division of Pulmonary, Allergy, and Critical Care Medicine and
4. Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota
5. Department of Pathology and Laboratory Medicine, University of Minnesota School of Medicine, Minneapolis, Minnesota
6. Applied Chest Imaging Laboratory, Department of Radiology, and
7. Division of Research, Kaiser Permanente of Northern California, Oakland, California; and
8. Division of Preventive Medicine, University of Alabama–Birmingham, Birmingham, Alabama
9. Department of Preventive Medicine and Environmental Health, University of Kentucky College of Public Health, Lexington, Kentucky
10. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, Massachusetts