Figure 1.

Intra- and interrater variability of TIL scores determined on HE-stained tissue sections. (A) HE staining of breast cancer tissue sections. Scale bars: 2 and 100 µm (respectively upper and lower panels). (B) Graph showing intrarater variability. (C) Graph showing interrater variability. Data information: 37 biopsies were stained with HE and scored twice with a washout period of 3 days by three independent pathologists. In (B, C), data are presented as mean ± confidence interval of 95%.