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Kaplan-Meier analysis of OS (A) and DFS (B) from the entire cohort from FUSCC based on preoperative leukocytosis, which was defined as a WBC count over 10,000/µL. X-tile analyses of OS (C) and DFS (D) were performed to determine the optimal cut-off value for the WBC count. Kaplan-Meier analysis of OS (E) and DFS (F) from the entire cohort from FUSCC based on preoperative leukocytosis, which was defined as a WBC count over 7,000/µL.
