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Radiosensitization by insulin‐like growth factor (IGF)‐II under hypoxia in various cancer cell lines. The surviving fraction of (a) Panc‐1 and (b) MCF‐7 cells under hypoxic conditions, treated with (closed circle) or without (open circle) IGF‐II at 100 ng/mL. Experiments were repeated three times, and the mean ± SD are shown. *P < 0.05, versus control (non‐treated).
