title: [Clinical evaluation and comparison of one-step and two-step sandwich method in determining CEA levels of cancer patients (author's transl)].
mesh_terms: D000368:Aged; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D003110:Colonic Neoplasms / Q000276:immunology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D009367:Neoplasm Staging; D013274:Stomach Neoplasms / Q000276:immunology*
chemical_list: D002272:Carcinoembryonic Antigen