1. Department of Orthopedic Surgery, Stanford University, Stanford, California, USA.
2. Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.
3. School of Pharmacy, Chongqing Medical University, Chongqing, China.
4. Department of Oral and Maxillofacial Surgery, Chung-Ang University Hospital, Seoul, Korea.
5. Department of Cardiothoracic Surgery, Stanford University, Stanford, California, USA.
6. Department of Materials Science and Engineering, and Stanford University, Stanford, California, USA.
7. Department of Bioengineering, Stanford University, Stanford, California, USA.