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Walker E, Ohishi M, Davey RE, Zhang W, Cassar PA, Tanaka TS, Der SD, Morris Q, Hughes TR, Zandstra PW, Stanford WL.Walker E, et al. Among authors: stanford wl.Cell Stem Cell. 2007 Jun 7;1(1):71-86. doi: 10.1016/j.stem.2007.04.002.Cell Stem Cell. 2007.PMID: 18371337Free article.