1. Department of Pathology, Harbin Medical University, Harbin, Heilongjiang 150081, China
2. Department of Hepatopancreatobiliary Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266071, China
3. Department of Microbiology, Harbin Medical University, Harbin, Heilongjiang 150081, China
4. Translation Medicine Center of Northern China, Harbin Medical University, Harbin, Heilongjiang 150081, China
5. Basic Medical Institute, Heilongjiang Medical Science Academy, Heilongjiang 150081, China