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Characterization of collagen I and fibronectin before and after different decellularization methods. (A) Fluorescence staining of collagen I and fibronectin. Scale bar=100 μm. (B) Quantification of collagen I. (C) Quantification of fibronectin. *p<0.05, **p<0.01 compared with cell sheet. Color images available online at www.liebertpub.com/tec
