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Figure 3 Kaplan-Meier Survival Curves and Proportional Hazard Survival Plots According to WBC Count Groups
(A) Kaplan-Meier curves. (B) Proportional hazard survival plots were evaluated at mean values of the explanatory variables. In participants with white blood cell (WBC) count 3,500/mm3, the predicted survival was extrapolated up to 20 years of follow-up, because of the absence of events after 20 years.
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