353P - Pertuzumab, trastuzumab, and docetaxel for HER2-positive metastatic breast cancer: Results of single arm phase IV COMACHI study. - Masuda, N.; Ohtani, S.; Nagai, S.; Takashima, S.; Yamaguchi, M.; Tsuneizumi, M.; Komoike, Y.; Osako, T.; Ito, Y.; Ikeda, M.; Ishida, K.; Nakayama, T.; et al. (Annals of Oncology, 2019)