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Morphological characterization of cell-loaded cultures after transplantation. General growth morphology of scaffolds in each group was shown at 7, 14, and 21 days after transplantation (A). H&E staining (B) showed radially distributed cells in the scaffolds. Host blood vessels (black arrows) grew abundantly within the pores of all cultures, especially the co-cultures. Scale bar, 50 µm.
