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Cell survival of TRAMPC1 cells irradiated to 20 Gy of X-rays after 48 h of incubation (C, control; RA, treated with rosmarinic acid; Ci, irradiated control; RAi, irradiated, previously treated with rosmarinic acid; Bys, treated with irradiated cell culture medium; BysRA, treated with irradiated cell culture medium and with rosmarinic acid). Data are the mean and standard error of eight independent experiments.
