Chromosome analysis of chorionic villi: technique and results.
D002824:Chorionic Villi / Q000648:ultrastructure*; D002869:Chromosome Aberrations; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007621:Karyotyping / Q000379:methods*; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*