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Transmission electron microscopy investigation of ARA in vitro schistosomicidal effect. Adult (A and B) and 3-week-old (C and D) S. mansoni worms incubated for 4 h in RPMI medium supplemented with 20% FCS and 0 (A and C), 5 (B), or 2.5 (D) mM ARA were examined by transmission electron microscopy.
