Racial variation in incidence of trisomy
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Lau, T.K.; Fung, Hedy Y.M.; Rogers, Michael S.; Cheung, K.L.
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Article
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1998
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John Wiley and Sons
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English
โ 12 KB
The objective of this study was to establish whether the influence of advanced maternal age on the incidence of trisomy 21 in the local Chinese population is similar to that seen among European patients by comparing the observed number of trisomy 21 cases against the expected number which was calcul