1 Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah; Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah.
2 Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, Utah; Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah; Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah. Electronic address: ravi.ranjan@hsc.utah.edu.