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Epithelial lining of the digestive tract of control snails (A, B), those exposed to camellia (C, D), those exposed to mangosteen (E, F), and those exposed to niclosamide (G, H). Camellia and mangosteen-treated groups showed an increase of vacuolation in digestive cells and a decrease of ciliated cells compared with the control snails. Lu, lumen; Ci, cilia.
