1. Department of Mechanical and Aerospace Engineering Samueli School of Engineering, University of California Los Angeles California USA
2. Department of Bioengineering Samueli School of Engineering, University of California Los Angeles California USA
3. Department of Materials Science and Engineering Samueli School of Engineering, University of California Los Angeles California USA
4. Division of Advanced Prosthodontics School of Dentistry, University of California Los Angeles California USA
5. Department of Orthopedic Surgery David Geffen School of Medicine, University of California Los Angeles California USA