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(A) H&E staining of wound sites of control group and the group with the treatment of H, Ag@H and Ag-Hes@H, respectively, on the 10th day after surgery; (B) Masson staining of wound sites with the treatment of NH, Ag@H and Ag-Hes@H, respectively, on the 10th day after surgery; scale bars are all 100 μm
