Estimating a woman's risk of having a pregnancy associated with Down's syndrome using her age and serum alpha-fetoprotein level
1987 ◽
Vol 94
(12)
◽
pp. 1225-1225
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1987 ◽
Vol 24
(9)
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pp. 725-731
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Keyword(s):
1989 ◽
Vol 96
(4)
◽
pp. 499-500
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Keyword(s):
Keyword(s):
Keyword(s):
1998 ◽
Vol 18
(6)
◽
pp. 585-589
◽
1987 ◽
Vol 94
(7)
◽
pp. 636-642
◽
Keyword(s):
1987 ◽
Vol 94
(12)
◽
pp. 1225-1226
◽
1989 ◽
Vol 96
(1)
◽
pp. 52-60
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Keyword(s):