1. Department of Orthopaedic Surgery; Third Hospital of Hebei Medical University; Shijiazhuang Hebei Province, 050051 China
2. Department of Gynecology; Fourth Hospital of Hebei Medical University; Shijiazhuang Hebei Province, 050011 China
3. Department of Radiology; Third Hospital of Hebei Medical University; Shijiazhuang Hebei Province, 050051 China