1. Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine Asahikawa Medical University Asahikawa Hokkaido Japan
2. Division of Tumor Pathology, Department of Pathology Asahikawa Medical University Asahikawa Hokkaido Japan
3. Gastroenterology and Endoscopy, Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine Asahikawa Medical University Asahikawa Hokkaido Japan