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Kaplan–Meier analysis of overall survival rates in 90 patients with advanced thymic carcinoma according to (A) pretreatment LDH level (<190 IU/L: blue/≥190 IU/L: green); (B) T stage (T2 + 3: blue/T4: green); and (C) pathologic grade (low: blue/high: green). LDH = lactate dehydrogenase.
