1. Department of Surgery, University of California, San Francisco, California;
2. Department of Bioengineering, University of California, San Francisco, California;
3. Department of Mechanical Engineering and Surgery, University of Kentucky, Lexington, Kentucky;
4. Department of Cardiology, National Heart Centre Singapore, and Duke-NUS Graduate Medical School, Singapore;
5. Department of Mechanical Engineering, University of California, Berkeley, California;
6. Department of Bioengineering, The University of Utah, Salt Lake City, Utah;
7. Cleveland Clinic, Cleveland, Ohio; and
8. Department of Biomedical Engineering, Indiana University-Purdue University, Indianapolis, Indiana