Affiliation: | 1. Oncology Center, Asahikawa Medical University Hospital, 2-1, Midorigaoka-Higashi, Asahikawa, Hokkaido, 078-8510, Japan 2. Division of Gastroenterology and Hematology/Oncology, Department on Internal Medicine, Asahikawa Medical University, 2-1, Midorigaoka-Higashi, Asahikawa, Hokkaido, 078-8510, Japan
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