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. 2020 Mar 9;43(5):1525–1535. doi: 10.3892/or.2020.7536

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Copyright: © Liu et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 6. — Association of CTCs with the PFS and OS of patients with nasopharyngeal squamous cell carcinoma. PFS and OS of patients with nasopharyngeal squamous cell carcinoma whose CTC counts increased was compared with those whose CTC counts decreased or remained unchanged (P=0.0043 and 0.1951). PFS and OS of patients with nasopharyngeal squamous cell carcinoma who presented with negative CTCs or whose CTCs changed from positive to negative compared with those who presented with positive CTCs or whose CTCs changed from negative to positive (P=0.0737 and 0.8695). CTC, circulating tumor cell; OS, overall survival; PFS, progression-free survival.