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Gold R, Giegerich G, Hartung HP, Toyka KV.Gold R, et al. Among authors: hartung hp.Proc Natl Acad Sci U S A. 1995 Jun 20;92(13):5850-4. doi: 10.1073/pnas.92.13.5850.Proc Natl Acad Sci U S A. 1995.PMID: 7597040Free PMC article.