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Dose-response curves for the frequency of micronucleated cells after exposure of human lymphocytes to monoenergetic neutrons: 13.7-MeV (open circles); 1.5-MeV (triangles); 5.9-Mev (closed circles); 0.44-MeV (squares); 0.22-MeV (diamonds). Horizontal dashed lines indicated the 95% confidence region for the pooled control data. Error bars for data points are 95% confidence intervals.
