The logical employment of sigmoidoscopy and roentgenologic examination in studies of the colon.
D003106:Colon; D003108:Colonic Diseases; D003110:Colonic Neoplasms; D004194:Disease; D004651:Employment; D006801:Humans; D012812:Sigmoidoscopy
COLON/diseases; COLON/neoplasms; SIGMOIDOSCOPY