1. Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
2. Division of Cardiology, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
3. Department of Surgery/Cardiothoracic Surgery, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
4. Division of Cardiology, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA.