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Hespell RB, O'bryan PJ.Hespell RB, et al. Among authors: o bryan pj.Appl Environ Microbiol. 1992 Apr;58(4):1082-8. doi: 10.1128/aem.58.4.1082-1088.1992.Appl Environ Microbiol. 1992.PMID: 16348679Free PMC article.