%0 Journal Article %T Self-renewal potential of NPCs decreased in vitro during human embryonic brain development with reduced activation of mitogen-activated protein kinases signaling %A Zhao Lingyu %A Jiao Qian %A Chen Xinlin %A Yang Pengbo %J Molecular Neurodegeneration %D 2012 %I BioMed Central %R 10.1186/1750-1326-7-s1-s19 %U http://www.molecularneurodegeneration.com/content/7/S1/S19