1. Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California;
2. Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota;
3. Pulmonary and Critical Care, Department of Medicine, Indiana University School of Medicine and Richard L. Roudebush VA Medical Center, Indianapolis, Indiana;
4. Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Brown University, Providence, Rhode Island;
5. Pulmonary and Critical Care, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland;
6. Division of Rheumatology, Department of Medicine, Georgetown University, Washington, District of Columbia;
7. Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Yale University School of Medicine, New Haven, Connecticut;
8. Department of Psychology, Northeastern University College of Science, Boston, Massachusetts;
9. Department of Biomedical Sciences, University of Pennsylvania, Philadelphia, Pennsylvania;
10. Division of Rheumatology, Department of Medicine, Columbia University, New York City, New York;
11. Division of Rheumatology, Department of Medicine, Northwestern University, Evanston, Illinois;
12. Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee;
13. Division of Occupational Health and Environmental Health Sciences, National Jewish Health and the University of Colorado, Denver, Colorado;
14. Women’s Health Working Group, NIH Office of Research on Women's Health, National Institute of Health, Bethesda, Maryland;
15. National Institute of Arthritis, Musculoskeletal and Skin Diseases, Bethesda, Maryland;
16. Division of Lung Diseases, NHLBI, Bethesda, Maryland;
17. Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, the Ohio State University, Columbus, Ohio; and
18. Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina