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Figure 5. Arginase 1 staining in tumors and tumor-draining lymph nodes. (A–D) Examples of CD14 (blue, nuclear hematoxilin is light blue) and ARG1 (brown) staining in breast tumors (A–C) and a tumor-draining lymph node (D). Left panels = 2.5× magnification, right panels = 10× magnification of the selection on the left side.
