Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleWater exchange versus air insufflation for colonoscopy: Methodological issues of the meta-analysis are a cause for concern.AuthorsKai ZhangSubjectsANESTHESIA; COLONOSCOPY; PAIN management; INSUFFLATIONPublicationSaudi Journal of Gastroenterology, 2019, Vol 25, Issue 3, p205ISSN1319-3767Publication typeLetter to the EditorDOI10.4103/sjg.SJG_42_19