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Hale JD, Ting YT, Jack RW, Tagg JR, Heng NC.Hale JD, et al. Among authors: heng nc.Appl Environ Microbiol. 2005 Nov;71(11):7613-7. doi: 10.1128/AEM.71.11.7613-7617.2005.Appl Environ Microbiol. 2005.PMID: 16269816Free PMC article.