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Langworthy DE, Stapleton RD, Sayler GS, Findlay RH.Langworthy DE, et al. Among authors: findlay rh.Appl Environ Microbiol. 1998 Sep;64(9):3422-8. doi: 10.1128/AEM.64.9.3422-3428.1998.Appl Environ Microbiol. 1998.PMID: 9726892Free PMC article.