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Hartman DJ, Surin BP, Dixon NE, Hoogenraad NJ, Høj PB.Hartman DJ, et al. Among authors: surin bp.Proc Natl Acad Sci U S A. 1993 Mar 15;90(6):2276-80. doi: 10.1073/pnas.90.6.2276.Proc Natl Acad Sci U S A. 1993.PMID: 8096339Free PMC article.