1. Genomics Research Center, State-Province Key Laboratory of Biopharmaceutical Engineering, Harbin Medical University, Harbin, China
2. Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Heilongjiang, China
3. Department of Colorectal Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
4. Department of Colorectal Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
5. Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Canada