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. 2020 Sep 11;15:6761–6777. doi: 10.2147/IJN.S244533

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© 2020 Xie et al.

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The penetration of HGFs at 24h and 72h. (A)–(C), (D)–(F) show the cells seeded on the surface. (A)–(C), (D)–(F) show the opposite side of the surface.

Abbreviation: HGFs, human gingival fibroblasts.