No abstract available
MeSH terms
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Animals
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Cell Line
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Embryo, Nonmammalian / metabolism
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Embryonic Development*
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Mice
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Signal Transduction*
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Smad Proteins / metabolism
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Transforming Growth Factor beta / metabolism
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Xenopus / embryology
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Xenopus / metabolism
Substances
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Smad Proteins
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Transforming Growth Factor beta