1. College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
2. State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
3. National Clinical Research Center for Geriatrics, Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
4. Department of Orthopedic Surgery, The Affiliated Hospital of Panzhihua University, Panzhihua 617000, China
5. Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, Massachusetts 02115, United States