1. Department of Medicine,
2. Division of Cardiology, University of California, San Francisco, San Francisco, California;
3. Department of Biostatistics,
4. Division of Pulmonary and Critical Care Medicine, Louisiana State University, New Orleans, Louisiana;
5. Division of Pulmonary and Critical Care Medicine, Oregon Health Sciences University, Portland, Oregon;
6. Division of Cardiology, University of Utah, Salt Lake City, Utah;
7. Department of Medicine and
8. Department of Health Services, Policy & Practice, Brown University, Providence, Rhode Island;
9. Division of Pulmonary and Critical Care Medicine and
10. the Mary M. Parkes Center, University of Rochester, Rochester, New York; and
11. Division of Pulmonary and Critical Care Medicine, Stanford University, Palo Alto, California
12. Department of Epidemiology, and
13. Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, Washington;