title: False-positive and false-negative cytogenetic findings on chorionic villus sampling.
authors.forename: D J
authors.initials: DJ
authors.lastname: Tomkins
authors.forename: M J
authors.initials: MJ
authors.lastname: Vekemans
mesh_terms: D015193:Chorionic Villi Sampling; D002869:Chromosome Aberrations / Q000175:diagnosis*; D025063:Chromosome Disorders; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D018566:Pregnancy, High-Risk