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Article

Sex steroids at birth: genetic and environmental variation and covariation.

Developmental psychobiology - 1 Dec 1991

Sakai L M, Baker L A, Jacklin C N, Shulman I

Abstract excerpt

Three sex-steroids (estradiol, progesterone, & testosterone) were assayed from the umbilical cord blood of 58 same-sex twin pairs in an investigation of the effects of sex, as well as genetic and environmental factors, on neonatal hormone levels. Although significant mean differences were found between boys and girls for both testosterone and progesterone, sex appeared to account for very little of the total...

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Identifiers

PMID: 1773914
DOI: 10.1002/dev.420240804

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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