1. National Engineering Research Center for Biomaterials, College of Biomedical Engineering Sichuan University Chengdu China
2. Department of Orthopedics West China Hospital, Sichuan University Chengdu China
3. School of Mechanical Engineering Chengdu University Chengdu China
4. Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region (Hospital.C.T.) Chengdu China