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Severin I, Confurius-Guns V, Stal LJ.Severin I, et al. Among authors: confurius guns v.Arch Microbiol. 2012 Jun;194(6):483-91. doi: 10.1007/s00203-011-0787-5. Epub 2012 Jan 8.Arch Microbiol. 2012.PMID: 22228487Free PMC article.