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Survival curve by involved lymph node location in all patients. (A) Survival curve of all patients with positive SCLNs and negative SCLNs, median survival time was 21.0±1.5 and 39.0±2.8 months, respectively; (B) survival curve of patients with SCLNs metastasis and other lymph node metastasis (except for SCLNs), median survival time was 21.0±1.5 and 30.0±3.3 months, respectively. SCLN, supraclavicular lymph node.
