Pyrotinib or Lapatinib Combined With Capecitabine in HER2-Positive Metastatic Breast Cancer With Prior Taxanes, Anthracyclines, and/or Trastuzumab: A Randomized, Phase II Study.
Fei Ma, Quchang Ouyang, Wei Li...
https://pubmed.ncbi.nlm.nih.gov/31430226