HLA-DRA and gastric cancer: Heterogeneous HLA-DRA protein expression was observed in tissue microarrays of human gastric cancer (Fig. 2a), with the Kaplan–Meier survival curves, obtained from The Human Protein Atlas, indicating a non-statistically significant difference for high vs. low HLA-DRA expression of the α subunit of HLA-DR (Fig. 2b P-score = 0.20).