AR and triple-negative breast carcinoma: For example, Lehman et al. classified triple-negative breast cancer into 7 subtypes (basal-like 1, basal-like 2, immunomodulatory, mesenchymal, mesenchymal stem-like, luminal androgen receptor, and unstable) and Masuda et al. reported that the pCR rates for neoadjuvant chemotherapy were different between these subtypes [41].