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Posnenkova OM, Kiselev AR, Gridnev VI, Popova YV, Shvartz VA.Posnenkova OM, et al. Among authors: kiselev ar.Oman Med J. 2012 May;27(3):261-2. doi: 10.5001/omj.2012.63.Oman Med J. 2012.PMID: 22811785Free PMC article.No abstract available.