1. Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, California.
2. Department of Mechanical Engineering, Stanford University, Stanford, California.
3. Translational Medicine R&D Center, Shenzhen Institutes of Advanced Technologies, Shenzen, China.
4. Department of Orthopaedic Surgery, Bichat Teaching Hospital, Paris School of Medicine, Paris VII University, Paris, France.
5. Department of Radiology, Stanford University, Stanford, California.
6. Department of Bioengineering, Stanford University, Stanford, California.
7. Department of Materials Science & Engineering, Stanford University, Stanford, California.