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Balaram P, Kien PK, Ismail A.Balaram P, et al.Int J Med Microbiol. 2009 Mar;299(3):177-85. doi: 10.1016/j.ijmm.2008.08.004. Epub 2008 Oct 8.Int J Med Microbiol. 2009.PMID: 18845475Review.