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(A) Histological examination of a piece of the explanted decellularized pericardial patch shows a normal extracellular matrix with a monolayer of endothelial-like cells (H&E staining). (B) Goldner stained pericardial patch showed the well preserved collagen structures of the pericardial patch confirmed with Gomori staining (C). (D) Pentachrome staining reflects an intact extracellular matrix.
