title: [Serum levels of carcinoembryonic antigen (CEA) and pregnancy-associated alpha 2-glycoprotein (alpha 2-PAG) in patients with breast cancer].
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000601:surgery; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D011257:Pregnancy Proteins / Q000032:analysis*
chemical_list: D002272:Carcinoembryonic Antigen; D011257:Pregnancy Proteins