Transcutaneous Carbon Dioxide Decreases Immunosuppressive Factors in Squamous Cell Carcinoma In Vivo

Figure 5

Immunohistochemical staining area. Quantification of mean immunohistochemical staining of PD-L1 (a), PD-L2 (b), and galectin-9 (c). The stained area at each randomly selected point in each group was quantified.

(a)

(b)

(c)