Affiliation: | 1. Division of Cardiothoracic Surgery, the Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas;2. Department of Cardiology, Baylor College of Medicine, Houston, Texas;3. Department of Cardiothoracic Surgery, The Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas;4. Department of Cardiology, The Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas;5. Department of Cardiovascular Surgery, the Texas Heart Institute, Houston, Texas |