Yang, Z., Yu, Y., , Guan, M., Zhao, Y., & Cao, X. (2018). The combined pN stage and breast cancer subtypes in breast cancer: a better discriminator of outcome can be used to refine the 8th AJCC staging manual. Breast Cancer (Tokyo, Japan). https://doi.org/10.1007/s12282-018-0833-0 (Original work published 2018)