Double contrast barium studies for early diagnosis of neoplasms of the colon.
D001464:Barium; D001466:Barium Sulfate; D003110:Colonic Neoplasms; D042241:Early Diagnosis; D006801:Humans
D001464:Barium; D001466:Barium Sulfate
BARIUM SULFATE; COLON/neoplasms