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Toledano MB, Roman DG, Halden NF, Lin BB, Leonard WJ.Toledano MB, et al. Among authors: halden nf.Proc Natl Acad Sci U S A. 1990 Mar;87(5):1830-4. doi: 10.1073/pnas.87.5.1830.Proc Natl Acad Sci U S A. 1990.PMID: 2308942Free PMC article.