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Histological section photographs of different groups transplanted intramuscular of nude mice for 8 weeks and 12 weeks. Noted: composite of osteogenic rMSCs and β-TCP/PLLA scaffold (A: 8 weeks, 200×, D: 12 weeks, 100×); composites of rMSCs and β-TCP/PLLA scaffold (B: 8 weeks, 200×, E: 12 weeks, 100×); β-TCP/PLLA scaffold (C: 8 weeks, 200×, F: 12 weeks, 100×), (ABC: HE stain; DEF: Masson stain), the arrow in A shows osteoclast and “bv” means blood vessels.
