1. Department of Spinal Surgery, Zhucheng People’s Hospital, Weifang, Shandong, China
2. Zhucheng Linjia Village Central Health Center, Weifang, Shandong, China
3. Zhucheng Longdu Health Center, Weifang, Shandong, China
4. Department of Hand and Foot Surgery, Zhucheng People’s Hospital, Weifang, Shandong, China