eHealth Center, Westchester Medical Center Health Network; and Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Westchester Medical Center and New York Medical College, Valhalla, NY

Division of Pulmonary and Critical Care Medicine Westchester Medical Center; and Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD

*See also p. 849.

The authors have disclosed that they do not have any potential conflicts of interest.