1. Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
2. Department of Physiology Biomedical Engineering, Division of Geriatric Medicine and Gerontology, and the Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN 55905, USA
3. Department of Orthopaedics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China