Department of Gastrointestinal Oncology,Osaka Medical Center for Cancer and Cardiovascular Diseases;
Department of Gastroenterology and Hepatology,Okayama University Graduate School of Medicine;
Department of Pathology,Osaka Medical Center for Cancer and Cardiovascular Diseases;
PCL Osaka Inc.;
Chromoendoscopy; Esophageal; cancer; Esophageal; squamous; neoplasia; Iodine; staining; Pinkcolor; sign;