| http://www.w3.org/ns/prov#value | - .g. ionically charged surfaces such as poly-L-lysine and poly-L-ornithine coated and the like), multipotent neural stem cell proliferation can be detected by the formation of clusters of undifferentiated neural cells termed ???neurospheres,??? which after several days in culture, lift off the floor of the culture dish and float in suspension.
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