1 Critical Care Echocardiography Service, Intermountain Medical Center, and the Division of Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, UT. Electronic address: Michael.Lanspa@imail.org.
2 Critical Care Echocardiography Service, Intermountain Medical Center, and the Division of Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, UT.