1. Department of General Surgery, Jingmen First People's Hospital, Jingmen 448000, Hubei Province, China
2. Department of Medical Oncology, Capital Medical University Cancer Center, Beijing Shijitan Hospital, Beijing, 100038, China
3. First Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
4. Department of Hepatobiliary Surgery, Central Hospital of Wuhan, Wuhan 430014, Hubei Province, China