1. Institute of Hepatopancreatobiliary Surgery Southwest HospitalArmy Medical University (Third Military Medical University) Chongqing China
2. Communication NCO AcademyArmy Engineering University of PLA Chongqing China
3. Institute of Hepatopancreatobiliary Surgery Chongqing General HospitalUniversity of Chinese Academy of Sciences Chongqing China
4. Department of Hepatobiliary Surgery Xinqiao HospitalArmy Medical University (Third Military Medical University) Chongqing China
5. Department of Radiology Southwest HospitalArmy Medical University (Third Military Medical University) Chongqing China