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. 2020 Mar 15;11(12):3567–3579. doi: 10.7150/jca.43518

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Kaplan-Meier curves for overall survival. (A) Overall analysis of OS: SPT vs. On-surgery, (B) distant metastasis to liver: SPT vs. non-surgery, (C) distant metastasis to lung: SPT vs. non-surgery, (D) distant metastasis to bone: SPT vs. non-surgery, (E) distant metastasis to brain: SPT vs. non-surgery, (F) patients diagnosed between 2010 and 2015: SPT vs. non-surgery, (G) patients diagnosed between 1998 and 2009: SPT vs. non-surgery. SPT, surgery on primary tumor; OS: overall survival.