title: Letter: Carcinoembryonic antigen (CEA) assay.
mesh_terms: D002272:Carcinoembryonic Antigen / Q000032:analysis*; D003110:Colonic Neoplasms / Q000175:diagnosis*; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans
chemical_list: D002272:Carcinoembryonic Antigen