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Kaufman J, Yang BZ, Douglas-Palumberi H, Houshyar S, Lipschitz D, Krystal JH, Gelernter J.Kaufman J, et al. Among authors: krystal jh.Proc Natl Acad Sci U S A. 2004 Dec 7;101(49):17316-21. doi: 10.1073/pnas.0404376101. Epub 2004 Nov 24.Proc Natl Acad Sci U S A. 2004.PMID: 15563601Free PMC article.