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de Groot RJ, Rümenapf T, Kuhn RJ, Strauss EG, Strauss JH.de Groot RJ, et al. Among authors: kuhn rj.Proc Natl Acad Sci U S A. 1991 Oct 15;88(20):8967-71. doi: 10.1073/pnas.88.20.8967.Proc Natl Acad Sci U S A. 1991.PMID: 1924357Free PMC article.
Smith TJ, Cheng RH, Olson NH, Peterson P, Chase E, Kuhn RJ, Baker TS.Smith TJ, et al. Among authors: kuhn rj.Proc Natl Acad Sci U S A. 1995 Nov 7;92(23):10648-52. doi: 10.1073/pnas.92.23.10648.Proc Natl Acad Sci U S A. 1995.PMID: 7479858Free PMC article.