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The in vivo degradation of an ECM sheet was assessed using antibodies specific for hCol (human collagen type I, red) and rCol (rat collagen type I, green). (A) Day 7, (B) Day 14, (C) Day 28. Sections were counterstained with DAPI, which stains nuclei blue. Scale bars represent 200 μm. Color images available online at www.liebertpub.com/tea
