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. 2015 Apr 28;3(4):e12391. doi: 10.14814/phy2.12391

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© 2015 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of the American Physiological Society and The Physiological Society.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Representative photomicrographs of collagen IV immunostaining in WT (A), mdx (B) and mdx:utrophin^+/− (C) triceps muscles at 12 months. Bar is 50 μm. Density of collagen IV (D) and I (E) in WT, mdx, mdx:utrophin^+/− (het), and dko triceps muscles at indicated time-points. *Indicates significant difference from age-matched WT triceps muscles. ^#Indicates significant difference from mdx triceps muscles.