(Q46433260)
Statements
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2nd-trimester maternal serum human chorionic gonadotropin and alpha-fetoprotein levels in male and female fetuses with Down syndrome (English)
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Ofer Lehavi
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Orna Aizenstein
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Mark I Evans
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Yuval Yaron
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1 May 2005
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20
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3
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235-238
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Identifiers
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