embryo
• branching morphology defect at E9.5
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• small or absent trophoblast compartment at E9.5
• biased differentiation (diploid/polyploid trophoblast)
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• abnormal trophoblast giant cell size and morphology at E9.5
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mortality/aging
IMPC - WTSI
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• fewer than the expected number of fetuses are seen at E14.5, indicating sub-viability at this time
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