(Q52135829)
Statements
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Risk factors for trisomy 21: maternal cigarette smoking and oral contraceptive use in a population-based case-control study. (English)
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Khoury MJ
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Yang Q
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Sherman SL
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Hassold TJ
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Allran K
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Taft L
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Pettay D
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Erickson JD
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Freeman SB
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1 March 1999
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1
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80-88
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3
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Identifiers
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