Assertion: ngf | /r/HasProperty | frim et al
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Source sentences:
text: In response to excitotoxic glutamate analogues infused into the striatum, widespread and generalized neuronal protection is achieved both by simultaneous direct infusions of NGF (Holtzman et al 1996) and by previously placed grafts of genetically modified cells (using various different cell types) that express and release NGF (Frim et al 1993, Martinex-Serrano & Bjorklund 1996, Schumacher et al 1991).