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(A) SEM images: (a) cell morphology and (b) distribution of cells cultured on C-HLA/NPP scaffold after 4 weeks; (B) cell proliferation on scaffolds at day 1, 3, 5, and 7; (C) ALP activity of cells on day 1, 7, and 14. Reproduced from [70]. * p < 0.05, and ** p < 0.01.
