1. Division of Pulmonary, Allergy, and Critical Care Medicine and the UAB Lung Health Center, University of Alabama at Birmingham
2. Division of General Medicine, Columbia University Medical Center, New York, New York
3. Division of Nutritional Sciences, Weill Cornell Medical College, Ithaca, New York
4. Gillings School of Global Public Health, University of North Carolina, Chapel Hill
5. Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis
6. Division of Pulmonary and Critical Care Medicine, Northwestern University, Chicago, Illinois
7. Division of Pulmonary, Allergy, Sleep, and Critical Care, Boston University, Boston, Massachusetts
8. Department of Critical Care Medicine, University of Pittsburgh and Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania
9. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
10. MedStar Health Research Institute, Hyattsville, Maryland
11. Benjamin Leon Center for Geriatric Research and Education, Florida International University, Miami
12. Undergraduate Training and Education Center, Tougaloo College, Tougaloo, Mississippi
13. Department of Epidemiology, Mailman School of Public Health, Columbia University Medical Center, New York, New York.