Cell‐free DNA testing of maternal blood in screening for trisomies in twin pregnancy: cohort study at 10–14 weeks and updated meta‐analysis
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2014 ◽
Vol 69
(9)
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pp. 529-531
2017 ◽
Vol 50
(3)
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pp. 302-314
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2014 ◽
Vol 45
(1)
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pp. 42-47
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2015 ◽
Vol 45
(3)
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pp. 249-266
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