Fig. 6From: Soluble Periostin is a potential surveillance biomarker for early and long-term response to chemotherapy in advanced breast cancerPerformance of POSTN in long-term chemotherapy efficacy monitoring of BCa patients. A–D, dynamics of POSTN in four patients with complete observations with disease progression. E, progression free survival analysis was performed in patients with change above (n = 17) and below (n = 16) the median levels. PD progressive diseaseBack to article page