MARTYNIUK, V., et al. “OPTICAL PROPERTIES OF RAT SERUM AFTER INTRAGASTRIC ADMINISTRATION OF MELANIN”. Bulletin of Taras Shevchenko National University of Kyiv. Biology, vol. 83, no. 4, Aug. 2025, pp. 6-10, https://doi.org/10.17721/1728_2748.2020.83.6-10.