@article {8422,
	title = {Derivation and characterization of hepatic progenitor cells from human embryonic stem cells},
	journal = {PLoS ONE},
	year = {2009},
	doi = {10.1371/journal.pone.0006468},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/19649295},
	author = {Dongxin Zhao and Song Chen and Jun Cai and Yushan Guo and Zhihua Song and Jie Che and Chun Liu and Chen Wu and Mingxiao Ding and Hongkui Deng}
}
