1. Department of Orthopaedics Surgery, Hebei Medical University Third Hospital, Shijiazhuang, Hebei, China (mainland)
2. Department of Spine Surgery, Hebei Medical University Third Hospital, Shijiazhuang, Hebei, China (mainland)
3. Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi’an, Shaanxi, China (mainland)