Article

Early embryo mortality in natural human reproduction: What the data say

2016-11-25

Abstract excerpt

It is generally accepted that natural human embryo mortality during pregnancy is high – losses of 70% and higher from fertilisation to birth are frequently claimed. The first external sign of pregnancy occurs two weeks after fertilisation with a missed menstrual period. Establishing the fate of embryos before this is challenging, and hampered by a lack of data on the efficiency of fertilisation under natural condi...

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Literature Corpus work: a1984390-f7bd-5b23-a0e5-ec9dff14f6ec
DOI: 10.12688/f1000research.8937.1

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