1 Division of Cardiovascular and Thoracic Surgery, UTMB-Galveston, Galveston, Tex. Electronic address: abdeanda@utmb.edu.
2 Department of Clinical Sciences, University of Houston College of Medicine, Houston, Tex; Houston Heart, HCA Houston Healthcare, Houston, Tex.
3 Carolina Center for Interdisciplinary Applied Mathematics, University of North Carolina, Chapel Hill, NC; Computational Medicine Program, University of North Carolina, Chapel Hill, NC; McAllister Heart Institute, University of North Carolina, Chapel Hill, NC.