1 Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China.
2 Department of Head and Neck Surgery, The Third Affiliated Hospital of Harbin Medical University, Harbin, China.
3 Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China. mengxianzhi@sina.com.
4 Department of Gastrointestinal Surgery, Zhongshan Hospital of Xiamen University, Xiamen, China. hongxu28@vip.sina.com.
5 Institute of Gastrointestinal Oncology, Medical College of Xiamen University, Xiamen, China. hongxu28@vip.sina.com.
6 Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China. liulx@ems.hrbmu.edu.cn.