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The effect of selenium on cell viability. IDI-T and IDI-C clones were grown for 3 days in serum free media containing varying concentrations of selenium (0, 1, 5, 10, 20 and 40 nM). Cell viability was measured after 4 hours treatment with 0.5 mM tert-butylhydroperoxide and is shown as a percentage of untreated IDI-T and IDI-C clones grown in the same concentration of selenium. Values shown are means ± s.e.m.
