1. Department of Brest, Affiliated Hospital of Hebei Engineering University, Handan, Hebei, China
2. Department of Hepatobiliary Surgery, Handan Central Hospital, Handan, Hebei, China
3. Department of Pathology, Affiliated Hospital of Hebei Engineering University, Handan, Hebei, China
4. Department of Gynecology, Affiliated Hospital of Hebei Engineering University, Handan, Hebei, China
5. Department of Oncology, The Second People’s Hospital, Dongying, Shandong, China