AUTHOR=Westermair Anna Lisa , Irwin Scott A. , Schweiger Ulrich , Trachsel Manuel TITLE=Editorial: Approaches for Severe and Persistent Mental Illness JOURNAL=Frontiers in Psychiatry VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2021.722496 DOI=10.3389/fpsyt.2021.722496 ISSN=1664-0640