Fig. 1From: Serum HER2 extra-cellular domain, S100ß and CA 15-3 levels are independent prognostic factors in metastatic breast cancer patientsOverall survival (OS) according to a the tumor biological subtype, b the ECOG performance status, c the presence of brain metastases, d the presence of subcutaneous metastases, e the number of previous chemotherapy lines, f the serum CA 15-3 level, g the serum HER2 ECD level, and h the serum S100ß level. *NC: not calculableBack to article page