Maternal age-specific rates of chromosome abnormalities at chorionic villus study: a revision.
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D000328:Adult; D015193:Chorionic Villi Sampling; D002869:Chromosome Aberrations; D005260:Female; D005865:Gestational Age; D006801:Humans; D008423:Maternal Age; D008875:Middle Aged; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D012044:Regression Analysis