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. 2021 Mar 4;187(1):45–55. doi: 10.1007/s10549-021-06136-4

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Fig. 2 — IHC staining and scoring of PDGFRb. Example pictures of PDGFRb expression detected by immunohistochemistry (IHC). Staining of PDGFRb was performed on tissue microarrays and evaluated by two independent raters for average intensity (0/negative; 1/low; 2/moderate; 3/high) and positive stroma fraction (0/0%; 1/1–10%; 2/11–50%; 3/51–75%; 4/76–100%). Scale bar represents 200 μm