1. Department of Bioengineering and Department of Surgery, University of California, Los Angeles, California.
2. Department of Bioengineering, University of California, Los Angeles, California.
3. Department of Biomedical Engineering, University of California, Irvine, California.
4. Department of Mathematics, University of California, Irvine, California.
5. Department of Bioengineering and Department of Materials Science & Engineering, University of California, Los Angeles, California.