1. Divison of Pulmonary Disease and Critical Care Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont;
2. Division of Pulmonary, Critical Care and Occupational Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa;
3. Division of Pulmonary and Critical Care Medicine, Department of Medicine, and
4. Department of Thoracic Medicine and Surgery, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania;
5. Division of Pulmonary, Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California;
6. Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, University of Utah, Salt Lake City, Utah;
7. Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center–Harvard Medical School, Harvard University, Boston, Massachusetts;
8. Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, Washington;
9. Section of Thoracic Surgery, Department of Surgery, School of Medicine, University of Michigan, Ann Arbor, Michigan;
10. Division of Pulmonary and Critical Care Medicine, School of Medicine, University of Maryland, Baltimore, Maryland; and
11. American Thoracic Society, New York, New York