Exploratory Analysis of Age-Related Trends in Biostimulatory Response to Combined Calcium Hydroxylapatite-Carboxymethylcellulose and Microfocused Ultrasound With Visualization Treatments.

Subgroup changes in dermal elastin staining area for Group A were not significantly correlated with age ( R 2 = 0.2278; P = .3384), whereas such changes were marginally significant in Group B ( R 2 = 0.723; P = .0319; Figure 4B ).

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