Cell stem cell (2013) - Comment
pubmed: 23472873  doi: 10.1016/j.stem.2012.12.015  issn: 1875-9777  issn: 1934-5909 

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Xiaoning Han, Michael Chen, Fushun Wang, Martha Windrem, Su Wang, Steven Shanz, Qiwu Xu, Nancy Ann Oberheim, Lane Bekar, Sarah Betstadt, Alcino J. Silva, Takahiro Takano, Steven A. Goldman, Maiken Nedergaard