AUTHOR=Zhao Mingjian , Zhao Hongliang TITLE=A wound evaluation tool to prevent pressure ulcers JOURNAL=Frontiers in Surgery VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2022.1037961 DOI=10.3389/fsurg.2022.1037961 ISSN=2296-875X