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Fainstein N , Cohen ME, Ben-Hur T (2012) Time associated decline in neurotrophic properties of neural stem cell grafts render them dependent  on brain region-specific environmental support. Neurobiol Dis 19;49C:41-48

Thau-Zuchman O, Shohami E, Alexandrovich AG, Leker RR (2010) Vascular endothelial growth factor increases neurogenesis after traumatic brain injury. J Cereb Blood Flow Metab  30(5):1008-1016