Effectiveness of Neo-Adjuvant Systemic Therapy for Basal HER2 type Breast Cancer – Results from Retrospective Cohort Study of Japan Breast Cancer Research Group (JBCRG) – C03. (April 2018) - Ohtani, S.; Yasuaki, S.; Takada, M.; Ohi, Y.; Kurozumi, S.; Inoue, K.; Kosaka, Y.; Hattori, M.; Yamashita, T.; Takao, S.; Sato, N.; Iwata, H.; et al.