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In vitro effect of the crude hydroalcoholic extract of T. vulgare (TV) at 200 μg/mL on egg development (quantitative analysis of the development phenotype). After treatment, the eggs were microscopically examined and scored as developed or undeveloped based on the presence or absence of the miracidium. Data are presented as the mean of developed eggs from two separate experiments. *Significantly different from control (P < 0.05).
