Does a “vanishing twin” affect first-trimester biochemistry in Down syndrome risk assessment?
2006 ◽
Vol 195
(1)
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pp. 236-239
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Keyword(s):
2004 ◽
Vol 191
(6)
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pp. S25
Keyword(s):
2010 ◽
Vol 22
(2)
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pp. 135-138
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Keyword(s):
2002 ◽
Vol 20
(5)
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pp. 468-475
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Keyword(s):
1992 ◽
Vol 166
(3)
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pp. 872-877
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2008 ◽
Vol 278
(2)
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pp. 119-124
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2003 ◽
Vol 22
(1)
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pp. 36-39
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Keyword(s):
2007 ◽
Vol 30
(4)
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pp. 376-376
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