1. Department of Aerospace Engineering & Engineering Mechanics, The University of Texas at Austin , Austin, TX, USA
2. Department of Cardiology and Angiology, Heart Center Freiburg—Bad Krozingen, Faculty of Medicine, University of Freiburg , Freiburg, Germany
3. Department of Cardiovascular Surgery, Heart Center Freiburg—Bad Krozingen, Faculty of Medicine, University of Freiburg , Freiburg, Germany