1. Department of Radiology Beijing Jishuitan Hospital Beijing China
2. Medical Research & Biometrics Center National Center for Cardiovascular Disease Beijing China
3. Xinjiekou Community Health Service Center Beijing China
4. Department of Traumatic Orthopedics Beijing Jishuitan Hospital Beijing China
5. School of Biomedical Engineering & Imaging Sciences King's College London, St Thomas' Hospital London UK
6. Leiden University Medical Center, Department of Internal Medicine, Division of Endocrinology, Center for Bone Quality Leiden University Medical Center Leiden The Netherlands
7. Department of Internal Medicine Jan van Goyen Medical Center Amsterdam The Netherlands
8. Department of Medicine 3 FAU University Erlangen–Nürnberg and Universitätsklinikum Erlangen Erlangen Germany