Correction to: Breast Cancer (2020) 27:309–321 https://doi.org/10.1007/s12282-020-01074-3

In the original publication of the article, the author group and acknowledgements were published incorrectly. The correct author group and acknowledgements are given in this correction.


Acknowledgements


The authors greatly thanks to Dr. Shu Ichihara, Department of Pathology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan, for intensive and instructing discussion as a working group member for histological classification.