title: Brief communication: carcinoembryonic antigen in colon cancer: absence in perchloric acid precipitates of plasma.
mesh_terms: D000230:Adenocarcinoma / Q000276:immunology*; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D011232:Chemical Precipitation; D003110:Colonic Neoplasms / Q000276:immunology*; D006801:Humans; D010472:Perchlorates
chemical_list: D002272:Carcinoembryonic Antigen; D010472:Perchlorates