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. 2020 Jun 4;13(2):195–202. doi: 10.3892/mco.2020.2063

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Copyright: © Asano et al.

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited, the use is non-commercial and no modifications or adaptations are made.

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Outcomes of endocrine therapy for stage IV breast cancer. Kaplan-Meier curves of the indicated clinical effects of endocrine therapy are shown. (A) The median PFS was 85 weeks, (B) the median TTF was 68 weeks, and (C) the median OS was 379 weeks. PFS, progression-free survival; TTF, time to treatment failure; OS, overall survival.