| Affiliation: | 1. Department of Pathology, Shinshu University School of Medicine, Matsumoto, Japan;2. Department of Pathology, Saku Central Hospital Advanced Care Center, Saku, Japan;3. Department of Pathology, Nagano Red Cross Hospital, Nagano, Japan;4. Department of Digestive Surgery, Saku Central Hospital Advanced Care Center, Saku, Japan;5. Department of Gastroenterological Surgery, Nagano Red Cross Hospital, Nagano, Japan;6. Department of Gastroenterology, Nagano Red Cross Hospital, Nagano, Japan |
