Absent nasal bone: a specific marker for second-trimester fetuses with Down syndrome
2003 ◽
Vol 29
(5)
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pp. S21
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Keyword(s):
2011 ◽
Vol 204
(1)
◽
pp. S143
Keyword(s):
2008 ◽
Vol 32
(3)
◽
pp. 311-312
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2008 ◽
Vol 199
(3)
◽
pp. 281.e1-281.e5
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2006 ◽
Vol 195
(6)
◽
pp. S168
Keyword(s):
Keyword(s):
2008 ◽
Vol 199
(6)
◽
pp. S137