Effects of grandparental and parental age, birth order, and geographic variation on the sex ratio of live-born and stillborn infants

. 1968 Jul;20(4):381–391.

Effects of grandparental and parental age, birth order, and geographic variation on the sex ratio of live-born and stillborn infants.

PMCID: PMC1706360 PMID: 5666646

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

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