1 Division of Pulmonary and Critical Care Medicine, Department of Medicine, Intermountain Medical Center, Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT, and Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA;Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA;Division of Pulmonary and Critical Care Medicine, Department of Medicine, Intermountain Medical Center, and Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT.