Bone Regeneration Effect of Hyperbaric Oxygen Therapy Duration on Calvarial Defects in Irradiated Rats

Figure 4

Histological analysis (H-E staining, x200). Scale bar = 200. (a, b) Positive control group; (c, d) negative control group; (e, f) HBO-1 group; (g, h) HBO-3 group. Arrowheads, mature bone; arrow, immature woven bone.

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