Parsons, X. H., Teng, Y. D., Parsons, J. F., Snyder, E. Y., Smotrich, D. B., Moore, D. A. Efficient Derivation of Human Neuronal Progenitors and Neurons from Pluripotent Human Embryonic Stem Cells with Small Molecule Induction. J. Vis. Exp. (56), e3273, doi:10.3791/3273 (2011).