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Nottoli T, Hagopian-Donaldson S, Zhang J, Perkins A, Williams T.Nottoli T, et al. Among authors: williams t.Proc Natl Acad Sci U S A. 1998 Nov 10;95(23):13714-9. doi: 10.1073/pnas.95.23.13714.Proc Natl Acad Sci U S A. 1998.PMID: 9811866Free PMC article.
Zhang J, Williams T.Zhang J, et al. Among authors: williams t.Dev Dyn. 2003 Oct;228(2):194-207. doi: 10.1002/dvdy.10365.Dev Dyn. 2003.PMID: 14517991Free article.
Nelson DK, Williams T.Nelson DK, et al. Among authors: williams t.Dev Biol. 2004 Mar 1;267(1):72-92. doi: 10.1016/j.ydbio.2003.10.033.Dev Biol. 2004.PMID: 14975718Free article.