To assess acne vulgaris quantitatively using high‐frequency ultrasonography (HF‐USG) and power Doppler (PD), and investigate the feasibility and application value of HF‐USG and PD in acne vulgaris. Click to show full abstract
To assess acne vulgaris quantitatively using high‐frequency ultrasonography (HF‐USG) and power Doppler (PD), and investigate the feasibility and application value of HF‐USG and PD in acne vulgaris.
               
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