First trimester screening for Down's syndrome using maternal serum PAPP-A and free beta=hCG in combination with fetal nuchal translucency thickness
1998 ◽
Vol 105
(8)
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pp. 917-920
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Keyword(s):
Beta Hcg
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1997 ◽
Vol 10
(4)
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pp. 261-264
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Keyword(s):
2001 ◽
Vol 108
(10)
◽
pp. 1043-1046
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Keyword(s):
Keyword(s):
Keyword(s):
Keyword(s):
1997 ◽
Vol 17
(9)
◽
pp. 821-829
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Keyword(s):
1999 ◽
Vol 13
(4)
◽
pp. 229-230
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Keyword(s):
2001 ◽
Vol 76
(6)
◽
pp. 1282-1283
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2015 ◽
Vol 189
◽
pp. 13-18
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