Figure 5
From: Novel candidate factors predicting the effect of S-1 adjuvant chemotherapy of pancreatic cancer

Immunoreactive score (IRS). The Immunoreactivity scoring system (IRS), which is a combination of the intensity (1 to 4 points) and proportion of positive cells, was used. 8 points and more were judged to be IRS positive. Scale bar: 100 μm.