AUTHOR=Willms Arnulf Gregor , Fortelny Rene' H. , Berrevoet Frederik , Dietz Ulrich A. , Petersson Ulf , Schwab Robert TITLE=Editorial: Open Abdominal Treatment: How Much Evidence Do We Have? JOURNAL=Frontiers in Surgery VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2021.696296 DOI=10.3389/fsurg.2021.696296 ISSN=2296-875X