Additional file 1: Fig. S1. Paired IHC staining of B7-H4 in whole tissue sections and corresponding tissue microarrays of tumor tissues. (A-B)Both high expression in tumor cells; (C-D) Both low expression in tumor stroma; (E-F) Both moderate expression in tumor stroma; (G-H) Both low expression in tumor cells; (I-J) Both high expression in tumor cells and moderate expression in tumor stroma; (K-L)Both high expression in tumor cells; (M-N) Both high expression in tumor cells; (O-P)...