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Fig. 6.


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Collagen fiber in the dermal layer in all groups, 10 days after biopsy. Mallory-Azan staining, high magnification. Note: (A) positive control group, (B) mucus group, (C) combination group, (D) chitosan membrane group, (E) negative control group, (F) normal skin. Arrow shows collagen fiber, which was blue-stained.

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