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TEM of decellularized and native arteries. Example images are shown for (A) native and (B) decellularized arteries stained for PG. Native tissue appears denser than decellularized. Zoomed-in images of (C) native and (D) decellularized samples show details of PG (open arrows) decorating collagen fibrils (solid arrows). Although decellularization preserved PG, there appears to be some loss in density.
