1. Harbin Medical University, Harbin, Heilongjiang, China (mainland)
2. Department of Orthopedics, The First Hospital of Harbin, Harbin, Heilongjiang, China (mainland)
3. Department of Surgical Oncology, The First Hospital of Qiqihaer City, Qiqihaer, Heilongjiang, China (mainland)
4. Department of Orthopedics, Harbin Medical University, Cancer Hospital, Harbin, Heilongjiang, China (mainland)
5. Department of Orthopedics, Binzhou Medical University Hospital, Binzhou, Shandong, China (mainland)