Departments of *Medicine
†Medicine, Division of Pulmonary Critical Care and Sleep Medicine State University of New York
‡Department of Medicine, Interventional Pulmonary Section, Roswell Park Cancer Institute, Buffalo, NY
§Department of Biomedical, Industrial and Human Factors Engineering, United States Wright State University, Dayton, OH
K.H. and A.H.A. are consultants for Cook Medical. All other authors have no conflict of interest or other disclosures.