1. The Second School of Clinical Medicine, Southern Medical University , Guangzhou , People’s Republic of China
2. Department of Orthopedics, The Sixth Medical Center of PLA General Hospital , Beijing , People’s Republic of China
3. Department of Orthopedics, Xi’an Honghui Hospital , Xi’an , People’s Republic of China
4. Department of Orthopedics, Peking University Shenzhen Hospital , Shenzhen , People’s Republic of China