1. Department of Orthopedics, The Second Xiangya Hospital Central South University Changsha China
2. Department of Orthopaedic Surgery Tan Tock Seng Hospital Singapore
3. Center of Health Management The Central Hospital of Shaoyang Shaoyang China
4. Department of endocrinology, The Xiangya Hospital Central South University Changsha China
5. Department of Orthopedic Prince Charles Hospital Brisbane Queensland Australia