Correction to: Virchows Archiv (2020) 477 (Suppl 1):S1–S390

https://doi.org/10.1007/s00428-020-02938-x

In Poster Sessions, “Małgorzata Dębowska” has been added as the third author in the authorship group of the abstract shown below:

PS-01-057

Clinical value of PD-L1 (SP142) expression on immune cells (IC) in small biopsy specimens (SBS) from untreated triple-negative breast cancer (TNBC) patients - a single institution retrospective study

O. Stanowska*, W. Olszewski, M. Dębowska, J. Owczarek, J. Barańska, M. Prochorec-Sobieszek

*Maria Sklodowska-Curie National Research Institute of Oncology, Department of Pathology and Laboratory Medicine, Poland