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Qualitative histologic analysis of tissue samples after implantation in rat subcutaneous model for 2 weeks. H&E and MT stain showing histological images of the interface between connective tissue and scaffolds (scale bar = 300 μm). Vessels are characterized by the presence of red blood cells within defined lumens lined by endothelial cells at higher magnification (ML: muscle, FC: fibrous capsule, Scaf: scaffold, red arrow: blood vessel, and scale bar = 50 μm).
