title: [Measurement of pregnancy-associated plasma protein A in maternal peripheral blood and Down syndrome].
authors.forename: W
authors.initials: W
authors.lastname: Li
authors.forename: Y
authors.initials: Y
authors.lastname: Zhou
mesh_terms: D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D006801:Humans; D011247:Pregnancy; D011266:Pregnancy-Associated Plasma Protein-A / Q000737:chemistry / Q000378:metabolism*; D011296:Prenatal Diagnosis
chemical_list: D011266:Pregnancy-Associated Plasma Protein-A