According to the progress zone model 7, proximodistal structures develop under the influence of a continuous signal, now understood to be a fibroblast growth factor (FGF) 8, produced by the overlying ...
This is a preview. Log in through your library . Abstract Planarian flatworms regenerate their heads and tails from anterior or posterior wounds and this regenerative blastema polarity is controlled ...
The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...
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