1. Department of Orthopaedics, People’s Hospital of Yixing, Yixin, Jiangsu, China (mainland)
2. Department of Orthopedics, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, China (mainland)
3. People’s Hospital of Xishan District, Wux, Jiangsu, China (mainland)
4. Department of Orthopaedics, The Second Affiliated Hospital of Soochow, Suzhou, Jiangsu, China (mainland)