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(A) Cell activity was assessed by live/dead staining after 1, 3, 5 and 7 days of culture. (B) Panorama of live/dead stained 3D scaffold (C) Macro view of 3D bioprinted scaffold. (D) 12-well plates and 3D scaffolds were used to assess A375 cell activity with CCK-8 after 1, 3, 5 and 7 days of culture (n = 3). ***p < 0.001, **p < 0.01, *p < 0.05.
