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Kaplan-Meier survival analysis of 1xLD10 BCNU-treated (■) and sham-treated control (●) animals. The mean survival times were 41.0±0.7 and 25.2±7.5 days, respectively, for the treated and control groups (mean±SEM, n=5). There was a statistically significant increased life span in the treated animals (P=.007 Mantel-Cox logrank test).
