title: Established markers in second trimester maternal serum.
authors.affiliation: Leeds University Centre for Reproduction, Growth and Development, UK.
authors.forename: H
authors.initials: H
authors.lastname: Cuckle
mesh_terms: D015415:Biomarkers / Q000097:blood*; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis
chemical_list: D015415:Biomarkers