Photomicrograph of bone defect grafted with collagen matrix (positive control) on day 14

<p><b>Copyright information:</b></p><p>Taken from "The effects of and extracts on bones"</p><p>http://www.cmjournal.org/content/2/1/13</p><p>Chinese Medicine 2007;2():13-13.</p><p>Published online 19 Dec 2007</p><p>PMCID:PMC2206024.</p><p></p> No bone could be seen across the defect except a little new bone near the ends of the host bone (H). Collagen matrix (C) remained across the bone defect (Periodic acid-Schiff stain, original magnification × 40)