Pyrotinib Combined With Trastuzumab and Chemotherapy in HER2-positive Metastatic Breast Cancer Patients- a Multicenter Retrospective Study
Pyrotinib Combined With Trastuzumab and Chemotherapy in HER2-positive Metastatic Breast Cancer Patients- a Multicenter Retrospective Study
To explore the real world data of trastuzumab Combined With Trastuzumab And Chemotherapy in China, and to explore the relationship between progression free survival and treatment pattern.
Inclusion Criteria:
Exclusion Criteria:
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