title: Interpretation of screening test results: best performers have the most to learn.
authors.forename: Mark R
authors.initials: MR
authors.lastname: Nelson
mesh_terms: D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011237:Predictive Value of Tests; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000592:standards*; D011364:Professional Practice