1. First Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi 409‑3898, Japan
2. Department of Clinical and Laboratory, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi 409‑3898, Japan
3. Department of Biotechnology, Faculty of Life and Environmental Science, University of Yamanashi, Kofu, Yamanashi 400‑8510, Japan
4. Laboratory of Physiological Pathology, Nippon Veterinary and Life Science University, Tokyo 180‑8602, Japan
5. Department of Gastrointestinal Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
6. Department of Diagnostic Pathology, Fujita Health University School of Medicine, Toyoake, Aichi 470‑1192, Japan