Screening for Down's syndrome in older women based on maternal serum alpha-fetoprotein levels and age: Preliminary results
Keyword(s):
1989 ◽
Vol 96
(4)
◽
pp. 499-500
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Keyword(s):
1998 ◽
Vol 18
(6)
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pp. 585-589
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1989 ◽
Vol 96
(1)
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pp. 52-60
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Keyword(s):
1987 ◽
Vol 317
(6)
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pp. 342-346
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Keyword(s):
1987 ◽
Vol 24
(9)
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pp. 725-731
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Keyword(s):
1987 ◽
Vol 94
(12)
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pp. 1225-1225
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1987 ◽
Vol 94
(7)
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pp. 636-642
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