1. Department of EndocrinologyThe Third Hospital of Hebei Medical University Shijiazhuang China
2. Department of Orthopaedic SurgeryThe Third Hospital of Hebei Medical University Shijiazhuang China
3. Key Laboratory of Biomechanics of Hebei Province Shijiazhuang China
4. Department of Statistics and EpidemiologyHebei Medical University Shijiazhuang China
5. Chinese Academy of Engineering Beijing China