1. Department of Orthopedics, Orthopedic Institute The First Affiliated Hospital, Soochow University Suzhou China
2. School of Public Health, Medical College Soochow University Suzhou China
3. Division of Medical Devices National Institute for Food and Drug Control Beijing China
4. Department of Orthopedic Peking University First Hospital Beijing China
5. Center for Health Sciences and Engineering Tianjin China
6. School of Mechanical Engineering Jiangsu University of Technology Changzhou China