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Holz RW, Axelrod D.Holz RW, et al. Among authors: axelrod d.Ann N Y Acad Sci. 2002 Oct;971:232-43. doi: 10.1111/j.1749-6632.2002.tb04467.x.Ann N Y Acad Sci. 2002.PMID: 12438123Free article.Review.
Degtyar VE, Allersma MW, Axelrod D, Holz RW.Degtyar VE, et al. Among authors: axelrod d.Proc Natl Acad Sci U S A. 2007 Oct 2;104(40):15929-34. doi: 10.1073/pnas.0705406104. Epub 2007 Sep 24.Proc Natl Acad Sci U S A. 2007.PMID: 17893335Free PMC article.