Assertion: ngf's effect | /r/HasProperty | discontinued without subsequent loss of neurons
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Source sentences:
text: In the septum, this effect appears to be mediated via TrkA signaling (Lucidi-Phillipi et al 1996), and NGF need only be given transiently for a few weeks after the axotomy and can then be discontinued without subsequent loss of neurons (Tuszynski & Gage 1995a).