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(A) PDLCs’ morphology after 14 days of osteo-inductive culture. (B) hMSCs’ morphology after 14 days of osteo-inductive culture. (C) Proliferation curve of PDLCs and hMSCs under osteo-inductive culture. (D) Colony formation assay of PDLCs and hMSCs after 14 days of osteo-inductive culture. (E) Quantitative analysis of colony formation. Scale bars, 100 μm. (Student’s t-test, n ≥ 3; *P < 0.05, **P < 0.01).
