title: Observer variation in the detection of colorectal neoplasia on double-contrast barium enema: implications for colorectal cancer screening and training.
authors.forename: H
authors.initials: H
authors.lastname: D'Costa
mesh_terms: D001466:Barium Sulfate; D023881:Colonography, Computed Tomographic / Q000379:methods; D015179:Colorectal Neoplasms / Q000000981:diagnostic imaging; D003287:Contrast Media; D006801:Humans; D008403:Mass Screening / Q000379:methods; D015588:Observer Variation; D011871:Radiology / Q000193:education
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate