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Kazachkina NI, Nemtsova ER, Iakubovskaia RI, Karmakova TA, Ivanova LM, Sokolov AV.Kazachkina NI, et al. Among authors: iakubovskaia ri.Vopr Med Khim. 1991 May-Jun;37(3):35-7.Vopr Med Khim. 1991.PMID: 1949681Russian.