Invited Discussion on: The Impact of N-Acetylcysteine on Autologous Fat Graft—First-in-Human Pilot Study by Prof. Paweł Włodarski, Piotr Pietruski, MD, PhD; Wiktor Paskal, MD, PhD; Łukasz Paluch, MD, PhD; Adriana Maria Paskal, MD; Żaneta Nitek, MD, PhD; Jerzy Walecki, MD, PhD; Bartłomiej Noszczyk, MD, PhD