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. 1992 Mar 7;304(6827):640–641. doi: 10.1136/bmj.304.6827.640-c

Risk of Down's syndrome and amniocentesis rate.

K Spencer, P Carpenter

PMCID: PMC1881333 PMID: 1532761

640

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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