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Immunohistochemical staining scores for TGF-β1 (A) and MCP-1 (B) in patients with HSPN and IgAN. The staining scores were compared between the two groups of patients with the Mann–Whitney–Wilcoxon test. Z=3.6013, p=0.0003 for TGF-β1 and Z=3.94, p<0.001 for MCP-1.
