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手术队列中淋巴结检查组与对照组的生存曲线。A：OS曲线（有vs无，χ2=2.600，P=0.107）；B：LCSS曲线（有vs无, χ2=0.275, P=0.600）。
Kaplan-Meier survival curves between stage Ia SCLC patients with and without ELN in the surgery cohort. A: OS curve (with vs without, χ2=2.600, P=0.107); B: LCSS curve (with vs without, χ2=0.275, P=0.600).
