1. Department of Pathology, Massachusetts General Hospital, Boston
2. Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston
3. Harvard Medical School, Boston
4. Division of Pulmonary and Critical Care Medicine, Duke University Hospital, Durham, NC
5. Department of Radiology, Massachusetts General Hospital, Boston
6. Division of Thoracic Surgery, Massachusetts General Hospital, Boston
7. Division of Rheumatology, Massachusetts General Hospital, Boston
8. Harvard T.H. Chan School of Public Health, Boston