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- Downs, Karen M.
- BioEssays 2009 v.31 no.8 pp. 892-902
- allantois; congenital abnormalities; etiology; mice; umbilical cord
- ... The primitive streak establishes the antero-posterior body axis in all amniote species. It is thought to be the conduit through which mesoderm and endoderm progenitors ingress and migrate to their ultimate destinations. Despite its importance, the streak remains poorly defined and one of the most enigmatic structures of the animal kingdom. In particular, the posterior end of the primitive streak h ...
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