Roentgenologic sources of error in the diagnosis of colonic cancer.
D001464:Barium; D002277:Carcinoma / Q000000981:diagnostic imaging; D002430:Cecal Neoplasms / Q000000981:diagnostic imaging; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D011859:Radiography; D012811:Sigmoid Neoplasms / Q000000981:diagnostic imaging
D001464:Barium