1 Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio.
2 Division of Environmental and Occupational Health, National Jewish Health Sciences, Denver, Colorado.
3 Department of Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio.
4 American Thoracic Society, New York, New York.
5 Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mount Auburn Hospital/Beth Israel Lahey Health, Cambridge, Massachusetts; and.