Figure 3From: Circulating tumor cells as prognostic and predictive markers in metastatic breast cancer patients receiving first-line systemic treatmentPredictive value of circulating tumor cells. Comparison of different first-line treatments according to circulating tumor cell (CTC) baseline value. (a) Combination chemotherapy (poly-CTx) versus single-agent chemotherapy (mono-CTx). (b) Monochemotherapy + bevacizumab (CTx + bev.) versus single-agent chemotherapy (mono-CTx). CI, confidence interval; IV, inverse variance; SE, standard error.Back to article page