Division of Gastrointestinal Oncology and Digestive Endoscopy National Cancer Center Hospital East;
Kashiwa;
Chiba 277-8577;
Japan Department of Surgical and Molecular Pathology;
Dokkyo University School of Medicine;
880 Kitakobaysashi;
Mibu;
Shimotuga;
Tochigi 321-0293;
Japan;
Division of Gastrointestinal Oncology and Digestive Endoscopy National Cancer Center Hospital East;
Kashiwa;
Chiba 277-8577;
Japan;
Division of Pathology National Cancer Center East Research Institute;
Chiba 277-8577;
Japan;
Department of Surgical and Molecular Pathology Dokkyo University School of Medicine;
880 Kitakobaysashi;
Mibu;
Shimotuga;
Tochigi 321-0293;
Japan;
Division of Endoscopy National Cancer Center Hospital;
Tsukiji;
Tokyo 104-0045;
Japan;