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The histological examination of specimens post-op 6 months for PCL/PBMSCs: (a) H&E (40X), (c) H&E 100X, (e) Masson's trichrome stain (40X), and (g) Masson's trichrome stain (100X) and PCL/HA/PBMSCs group: (b) H&E (40X), (d) H&E 100X, (f) Masson's trichrome stain (40X), and (h) Masson's trichrome stain (100X). S: scaffold; B: bone formation area (deep blue area); F: fibrotic tissue area (light blue area). Black scale bar at 40X is 200 μm and black scale bar at 100X is 100 μm.
