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Patient Inclusion Flow Diagram
*Patients with metastasectomy were matched to patients without based on ECOG performance status, age group (≤55 vs >55 years), histology, and pathological stage and nodal status at RN.
**For a pair to be included in analyses, patients without a metastasectomy had to live long enough to have received a metastasectomy at the same time as their pairmate.
