1. Record Room, Dongying People’s Hospital, Dongying, Shandong, China
2. Department of Gynecology, Dongying People’s Hospital, Dongying, Shandong, China
3. Department of Urology, Dongying People’s Hospital, Dongying, Shandong, China
4. Department of Orthopaedics, Dongying People’s Hospital, Dongying, Shandong, China