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Mishchenko, N.P., Fedoreev, S.A., Glazunov, V.P. et al. Isolation and Identification of Impurities in the Parent Substance of Echinochrome and in the Drug Histochrome. Pharmaceutical Chemistry Journal 38, 50–53 (2004). https://doi.org/10.1023/B:PHAC.0000027646.78310.37
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DOI: https://doi.org/10.1023/B:PHAC.0000027646.78310.37