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Histological images of specimen at 8 weeks after surgery with Masson’s trichrome staining. Black box is the interest area. (A–C) Control group; (D–F) rGO2 group; (G–I) rGO4 group; (J–L) rGO10 group. NB, new bone; OB, old bone; GM, bone graft material (Jeong-Woo et al., 2017). Open access, 2017, Jeong-Woo Kim.
