Figure 4From: The effects of Rhizoma Curculiginis and Rhizoma Drynariae extracts on bonesPhotomicrograph of bone defect grafted with collagen matrix (positive control) on day 14. 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).Back to article page