Fig. 6

Overall survival (OS) and disease-free survival (DFS) curves of 119 patients with gastric adenocarcinoma according to PD-L1 expression, PD-L2 expression, CD8(+) T-cell density, and PD-1 expression on CD8(+) T cells. a, b OS and DFS curves according to PD-L1 expression status in primary tumors. c, d OS and DFS curves according to PD-L1 expression status in metastatic lymph nodes. e, f OS and DFS curves according to PD-L2 expression status in primary tumors. g, h OS and DFS curves according to PD-L2 expression status in metastatic lymph nodes. i, j OS and DFS curves according to PD-1 expression status on CD8(+) T cells in primary tumors. k, l OS and DFS curves according to PD-1 expression status on CD8(+) T cells in metastatic lymph nodes. m, n OS and DFS curves according to the density of CD8(+) T cells in primary tumors. o, p OS and DFS curves according to both PD-L1 and PD-1 expression in primary tumors