title: Study of carcinoembryonic antigen (CEA) in gastrointestinal cancers.
mesh_terms: D000747:Anemia, Hypochromic / Q000276:immunology; D000748:Anemia, Macrocytic / Q000276:immunology; D000951:Antigens, Neoplasm; D005189:False Positive Reactions; D005750:Gastric Juice / Q000276:immunology; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis* / Q000276:immunology; D006801:Humans; D008107:Liver Diseases / Q000276:immunology; D011863:Radioimmunoassay
chemical_list: D000951:Antigens, Neoplasm