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(A) Cytotoxicity of PD at various concentrations to FHs74Int cells. Effect of PD treatment on FHs74Int cell survival at 24 h after IR at 10 Gy (B), 48 h (C) and 72 h (D). (E) Effect of PD on the FHs74Int cell apoptosis at 48 h after IR. *, P < 0.05.
