title: When cecal intubation is a "must".
authors.forename: Trevor L
authors.initials: TL
authors.lastname: Nydam
authors.forename: Robert C
authors.initials: RC
authors.lastname: McIntyre
mesh_terms: D001466:Barium Sulfate; D002432:Cecum; D020685:Colonoscopes; D003113:Colonoscopy / Q000592:standards; D015179:Colorectal Neoplasms / Q000175:diagnosis; D004733:Enema; D006801:Humans; D014057:Tomography, X-Ray Computed
chemical_list: D001466:Barium Sulfate