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Cox regression analysis and curves of prognostic factors for disease progression. A. K-M curve analysis of neural invasion; B. K-M curve analysis of Gleason score; C. K-M curve analysis of initial PSA; D. K-M curve analysis of LDH. Note: K-M: Kaplan-Meier, PSA: Prostate-specific antigen, LDH: Lactate dehydrogenase.
