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Kaplan–Meier plots for overall survival according to CTC measured as (A) CTC conversion from ≥5 CTC/7.5 mL to <5 CTC/7.5 mL; (B) 30% CTC decline from baseline and (C) conversion from ≥1 CTC/7.5 mL to 0 CTC (CTC0). Abbreviations: CTC, circulating tumor cell; m, months.
