1. Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, P.R. China.
2. Graduate College of Youjiang Medical University for Nationalities, Youjiang Medical University for Nationalities, Baise, P.R. China.
3. Clinic Medicine Research Center of Hepatobiliary Disease, Youjiang Medical University for Nationalities, Baise, P.R. China.
4. Department of Pathology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, P.R. China.