Figure 2From: Circulating tumor cells as prognostic and predictive markers in metastatic breast cancer patients receiving first-line systemic treatmentPrognostic value of circulating tumor cells according with different first-line treatments. Estimated progression-free survival and overall survival according to baseline circulating tumor cell (CTC) value (< 5 vs. ≥ 5) in patients receiving (a), (e) endocrine therapy, (b), (f) chemotherapy alone, (c), (g) chemotherapy + bevacizumab, and (d), (h) chemotherapy + human epidermal growth factor receptor-2 (HER-2)-targeting drugs. C.I., confidence interval.Back to article page