Abstract
Analysis of published data indicates that the increased rate of trisomy 21 pregnancies with advancing maternal age is due to failure of a postulated maternal screening process between fertilisation and recognition. This mechanism may also operate in other trisomies.
Original language | English |
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Pages (from-to) | 944-947 |
Number of pages | 4 |
Journal | The Lancet |
Volume | 327 |
Issue number | 8487 |
DOIs | |
State | Published - 26 Apr 1986 |