Invited Discussion on "Three-Dimensional Volumetric Analysis of the Effect of Interval Time in Autologous Fat Graft Breast Augmentation" by Yan Lin, MA; Dali Mu, MD; Xiaoyu Zhang, MA; Haoran Li, MA; Yu Yao, BA.

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 https://www.springer.com/00266 .