1. Department of Molecular and Genomic Biomedicine, Center for Bioinformatics and Molecular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
2. Gastrointestinal Medical Oncology Division, National Cancer Center Hospital, Tokyo, Japan;
3. Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan;
4. Cancer Genomics Unit, Clinical Genomics Center, Nagasaki University Hospital, Nagasaki, Japan;
5. Department of Frontier Life Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
6. Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
7. Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska, USA.
8. Division of Biomarker Discovery, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Tokyo, Japan.
9. Department of Medical Oncology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
10. Division of Pathology, National Cancer Center Hospital, Tokyo, Japan.