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Estimation of images of snail, Monacha cartusiana (Mǖller) sections for (a) surface area (μm2), (b) nucleus/cytoplasm and mitochondria/cytoplasm ratios, and (c) integrated density of microvilli and mitochondria in control, ZnONPs-treated snails (74 μg/mL) for 14 d and recovered snails, respectively.
