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Histological images of the mouse subcutaneous pocket injection model. Col (A, D, G, J, M, P), Col/nHAp (B, E, H, K, N, Q), and Col/nHAp/BMP (C, F, I, L, O, R). Macroscopic images (A-C), H&E staining (D-F), Masson’s trichrome (MT) staining (G-I), von Kossa staining (J-L), osteonectin staining (M-O), and CD31 staining (P-R) (D-O: ×100, P-R: ×200, scale bars=200 µm). (Col: collagen, nHAp: nano-hydroxyapatite, BMP-2: bone morphogenetic protein-2)
