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Figure 6: Significant increase in the amount of collagen was observed by histologic evaluation with standard preparation with H and E (Upper: Before treatment, Lower: After treatment, a: Right side of face, b: Left side of face, H and E, ×200)

Figure 6: Significant increase in the amount of collagen was observed by histologic evaluation with standard preparation with H and E (Upper: Before treatment, Lower: After treatment, a: Right side of face, b: Left side of face, H and E, ×200)