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Tsvetkov VA, Krutikov ES, Chistyakova SI.Tsvetkov VA, et al. Among authors: chistyakova si.Probl Endokrinol (Mosk). 2020 Aug 4;66(1):56-63. doi: 10.14341/probl12359.Probl Endokrinol (Mosk). 2020.PMID: 33351313Russian.