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Kaplan–Meier curves of OS in patients according to metastatic status: with or without DM (A), the number of metastatic sites (C), 1 site versus >1 sites (E), 2 sites versus >2 sites (G). Kaplan–Meier curves of CSS in patients according to metastatic status: with or without DM (B), the number of metastatic sites (D), 1 site versus >1 sites (F), 2 sites versus >2 sites (H)
