1. Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu, Japan
2. Division of Animal Experiment, Life Science Research Center, Gifu University, Gifu, Japan
3. Division of Pathology, Gifu University Hospital, Gifu, Japan
4. Department of Gastroenterology, Endoscopy Division, National Cancer Center Hospital East, Kashiwa, Japan
5. Department of Diagnostic Pathology (DDP) and Research Center of Diagnostic Pathology (RC-DiP), Gifu Municipal Hospital, Gifu, Japan