title: Sixty second-look procedures indicated primarily by rise in serial carcinoembryonic antigen.
mesh_terms: D000230:Adenocarcinoma / Q000601:surgery*; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D003110:Colonic Neoplasms / Q000601:surgery*; D006801:Humans; D011863:Radioimmunoassay; D012004:Rectal Neoplasms / Q000601:surgery*
chemical_list: D002272:Carcinoembryonic Antigen