title: Maternal serum total activin A in pregnancies affected with fetal Down's syndrome.
authors.forename: G M
authors.initials: GM
authors.lastname: Lambert-Messerlian
authors.forename: J A
authors.initials: JA
authors.lastname: Canick
authors.forename: G E
authors.initials: GE
authors.lastname: Palomaki
mesh_terms: D028341:Activins; D015415:Biomarkers; D016022:Case-Control Studies; D004314:Down Syndrome / Q000175:diagnosis* / Q000517:prevention & control; D005260:Female; D005820:Genetic Testing / Q000379:methods*; D005865:Gestational Age; D006801:Humans; D007265:Inhibins / Q000097:blood*; D011237:Predictive Value of Tests; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D012680:Sensitivity and Specificity
chemical_list: D015415:Biomarkers; D028341:Activins; D007265:Inhibins