The First Hospital of China Medical University provided clinical samples (paired nontumor skin tissue and melanoma). According to a prior study [20 (link)], IHC staining and scoring were conducted. The following antibodies were used: PDGFRB (1 : 200; ab69506; Abcam) and FOXM1 (1 : 1000; ab207298; Abcam). The Ethics Committee of the First Hospital of China Medical University approved this study.
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