F Flemal

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Nerve growth factor (NGF), demonstrated by immunohistochemistry, appears during craniofacial development of the mouse in several embryonic tissues. First, NGF is present in the neural and placodic tissues of early embryos. At later stages, NGF staining appears in premuscular and precartilaginous blastemata, as well as in the tooth germs. The presence of NGF(More)
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