title: Serum CEA monitoring in the follow-up of colorectal cancer patients with negative preoperative serum CEA.
mesh_terms: D000230:Adenocarcinoma / Q000276:immunology* / Q000601:surgery; D000368:Aged; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D003110:Colonic Neoplasms / Q000276:immunology* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D011379:Prognosis; D012004:Rectal Neoplasms / Q000276:immunology* / Q000601:surgery
chemical_list: D002272:Carcinoembryonic Antigen