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Histological images of H&E-stained empty group (a, b), NF-Gelatin (c, d), and NF-Gelatin-NCPs (e, f ) implanted in calvarial defects for 6 weeks. Arrows in (a, c, e) mark the surgical margin of original defects. Scale bars in (a, c, e) represent 600 μm and in (b, d, f ) represent 200 μm. Color images available online at www.liebertpub.com/tea
