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Progression-free survival based on CTC kinetics and the treatment with anti-VEGF monoclonal antibody.
Notes: Continuous line: patients treated with anti-VEGF with favorable kinetics (CTC1+ and CTC2−). Dotted line: patients treated with anti-VEGF with unfavorable kinetics (CTC1− and CTC2+; P=0.007).
Abbreviation: CTC, circulating tumor cell.
