1. Internal Medicine—Pediatrics Residency Program, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, USA
2. Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
3. Section of Interventional Cardiology, Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
4. Section of Heart Failure and Transplantation Cardiology, Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA