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.