Note from the Publisher

It is with great sadness and regret that we inform the future readers of this book that the editor, Prof. Julianna Cseri, passed away shortly before finishing the book and having a chance to see its publication.

Prof. Julianna Cseri was IntechOpen's dear collaborator and she authored 1 book chapter with us and edited 2 books, "Background and Management of Muscular Atrophy" and "Skeletal Muscle - From Myogenesis to Clinical Relations".

This collaboration continued until her final days when she was acting as the editor of the book "Frailty and Sarcopenia - Recent Evidence and New Perspectives".

We would like to acknowledge Prof. Julianna Cseri contribution to open access scientific publishing, which she made during the years of dedicated work, and express our gratitude for her pleasant cooperation with us.

**IntechOpen Team, September 2022**

Section 1 Introduction
