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Figure 1: Egg enclosing Taenia pisiformis oncosphere in the process of hatching. (a) 15 min PI, a small tear appears in egg shell (arrow); (b) 30 min PI; (c) 60 min PI, oncosphere appears as ovoid body with three pairs of hooks (arrowheads); (d) 2 h PI, oncosphere appears as spheroid body with three pairs of marginal hooks (arrows). |
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