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Vinitsky A, Teng H, Grubmeyer CT.Vinitsky A, et al.J Bacteriol. 1991 Jan;173(2):536-40. doi: 10.1128/jb.173.2.536-540.1991.J Bacteriol. 1991.PMID: 1987148Free PMC article.
Yen KM, Karl MR, Blatt LM, Simon MJ, Winter RB, Fausset PR, Lu HS, Harcourt AA, Chen KK.Yen KM, et al.J Bacteriol. 1991 Sep;173(17):5315-27. doi: 10.1128/jb.173.17.5315-5327.1991.J Bacteriol. 1991.PMID: 1885512Free PMC article.