Digestive Endoscopy is published by John Wiley & Sons Ltd on behalf of the Japan Gastroenterological Endoscopy Society (JGES), the Asian Pacific Society for Digestive Endoscopy (APSDE) and the World Endoscopy Organization (WEO). Digestive Endoscopy is a journal for both gastrointestinal and surgical endoscopists focusing on new developments in gastrointestinal endoscopy through the publication of invited reviews from around the world. This will be supplemented by original articles and case reports of exceptional or unique interests. All articles are peer-reviewed by at least two experts in the field of the submitted paper.