Assertion: ganglion's neuron | /r/CapableOf | compete for trophic material
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Source sentences:
text: The possibility of substituting NGF for target in sympathetic development (see Section III,A) and the ability of specific growth factors to support essentially complete survival of E8 ciliary neurons grown in dissociated cell culture (Nishi and Berg, 1977; Tuttle et al., 1980) suggest that neurons do, in fact, compete for trophic material.