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(A) SEM of 20% PGS scaffold at baseline. The villus dimensions were ∼100 μm wide at the base, 30–40 μm wide at the tip, and about 250–300 μm in height. (B) SEM of 20% PGS scaffold after implantation for 2 weeks (in animal 413) demonstrating scaffold degradation. Villus dimensions are roughly equal at 2 weeks, but the scaffold base has diminished (dotted lines indicating thickness of the base) and degradation is apparent (arrows). SEM, scanning electron microscopy.
