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Abundant C3aR expression in perivascular regions of human melanoma. Serial FFPE sections of a human melanoma were stained using monoclonal antibodies for (A) C3aR, (B) C3a, (C) CD68, (D) CD163, (E) CD248, and (F) SOX10. Images are shown at ×400 magnification. The 50 μm size is indicated by the bar.
