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Histologic sections after Alcian Blue and van Gieson staining. Group 1 after 60 days (top) and group 2 after another 15 days (in total 75 days) with the graft exposed (bottom). A, The cutaneous pocket with a roof of native skin. B, Full-thickness skin graft. C, 3D bioprinted construct. Dotted lines denote the border between native skin and the transplant. All scale bars represent 1,000 µm.
