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Article

Changes in sex ratio from fertilization to birth in assisted-reproductive-treatment cycles

1 Jan 2014

Abstract excerpt

BACKGROUND: In Western gender-neutral countries, the sex ratio at birth is estimated to be approximately 1.06. This ratio is lower than the estimated sex ratio at fertilization which ranges from 1.07 to 1.70 depending on the figures of sex ratio at birth and differential embryo/fetal mortality rates taken into account to perform these estimations. Likewise, little is known about the sex ratio at implantation in...

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PMID: 24957129
DOI: 10.1186/1477-7827-12-56

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