In 2016, the World Journal of Gastrointestinal Endoscopy (WJGE) has published the 20^th issue which containing 8 articles contributed by scientists worldwide. Among these comprehensive articles are (1) “Endoscopic evaluation in diagnosis and management of inflammatory bowel disease”, a Review by Carthage P Moran, MB, et al from the Centre for Colorectal Disease, St. Vincent’s University Hospital and School of Medicine, University College Dublin, Ireland; and (2) “Identification of factors associated with sedation tolerance in 5000 patients undergoing outpatient colonoscopy: Canadian tertiary center experience”, an Original Article by Robert Enns, MD, et al from the Division of Gastroenterology, Saint Paul Hospital, Canada, etc. We invite you to peruse all 8 articles in this issue, as they present the latest research progress/findings and provide insightful comments in gastrointestinal endoscopy that will guide basic research and clinical practice in these fields.

This journal is an open-access journal which allows free immediate access to all full-text articles. For details, please visit: Volume 8, Issue 20, December 16, 2016.

Figure 1 The cover of the issue. Editorial Board Member of World Journal of Gastrointestinal Endoscopy, Hiroyuki Okada, MD, PhD, Professor, Department of Endoscopy, Okayama University Hospital, Okayama 7008558, Japan

The WJGE is a leading academic journal devoted to reporting the latest, cutting-edge research progress and findings of basic research and clinical practice in the field of gastrointestinal endoscopy. It was launched on October 15, 2009 and is published biweekly (24 issues annually) by BPG, the world's leading professional clinical medical journal publishing company.

We encourage gastrointestinal endoscopists worldwide to submit manuscripts to the WJGE describing their original basic or clinical research findings that are of high academic valueand which report new diagnostic techniques or summarize their treatment experiences.

We invited the readers to download and read the E-Journal of this issue, at:http://www.wjgnet.com/1948-5190/e-journal.htm.