Comment to: "Efficacy and Safety of Hyaluronic Acid Combined with Botulinum Toxin Type A in the Treatment of Midcheek Groove: A Prospective Study".

Level of Evidence V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.

Sisters But Not Twins: A Critical Appraisal of Long-Term Results in Breast Asymmetry Correction.

Background: Breast asymmetry is a common disorder, which can lead to significant emotional distress. Despite this, there is currently no widely accepted approach for managing this prevalent condition. Due to the high dimorphism of the breast, despite a satisfactory result in the short-term post-op, the recurrence of asymmetry is one of the most common weak points of breast recontouring.