title: The triple test decision.
authors.forename: A
authors.initials: A
authors.lastname: Grayson
mesh_terms: D000465:Algorithms; D003663:Decision Trees; D004314:Down Syndrome / Q000517:prevention & control*; D004992:Ethics, Medical; D005260:Female; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D012680:Sensitivity and Specificity