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Kaplan–Meier survival curves. Kaplan–Meier curves of overall, cancer‐specific, and metastasis‐free survival stratified by matrix metalloproteinase 7 (MMP‐7) gene expression. Overall, disease‐specific‐, and metastasis‐free survival is significantly shorter in patients with high MMP‐7 gene expression and serum concentration. *Patients with metastasis at surgery were not included in this analysis.
