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Winn SR, Hammang JP, Emerich DF, Lee A, Palmiter RD, Baetge EE.Winn SR, et al. Among authors: hammang jp.Proc Natl Acad Sci U S A. 1994 Mar 15;91(6):2324-8. doi: 10.1073/pnas.91.6.2324.Proc Natl Acad Sci U S A. 1994.PMID: 8134395Free PMC article.