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Variation of the mean number of LEP, MEP, and HEP during topically applied vitamin C-based therapy.
Notes: The figure shows a statistically significant increase in the number of MEP and HEP concomitant to the decrease in LEP. **P<0.01, ***P<0.0001.
Abbreviations: HEP, high echogenic pixel; LEP, low echogenic pixels; MEP, middle echogenic pixel.
