fig1
![Collagen membrane for reconstruction of soft tissue defects after surgery of oral cancer and precancer: a brief review](https://image.oaes.cc/c3cb17a0-161a-42b9-b2f6-e633e86f9b53/1348.fig.1.png)
Figure 1. Picture demonstrating the placement of wet collagen sheet over a thick, moistened gauze
Figure 1. Picture demonstrating the placement of wet collagen sheet over a thick, moistened gauze
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