| http://www.w3.org/ns/prov#value | - Growth factors such as basic Fibroblast Growth Factor (bFGF), Epidermal Growth Factor (EGF), Transforming Growth Factor (U.S. Pat. Nos. 5,851,832 and 5,753,506) and Leukemia Inhibitory Growth Factor (LIF; U.S. Pat. No. 6,103,530 to Carpenter) have all been shown to control the in vitro proliferation of neural stem cells.
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