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Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 31, No. 10, pp. 50–51, October, 1997.
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Levina, I.I., Chechekin, G.V., Arzamastsev, A.P. et al. Indirect polarographic determination of tryptophan, tryptamine, and serotonin in aqueous-organic formaldehyde solutions. Pharm Chem J 31, 557–558 (1997). https://doi.org/10.1007/BF02464267
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DOI: https://doi.org/10.1007/BF02464267