AUTHOR=Wu Jiangfeng , Zhao Anli , Jin Yun TITLE=Commentary: Abdominal Ultrasound and Its Diagnostic Accuracy in Diagnosing Acute Appendicitis: A Meta-Analysis JOURNAL=Frontiers in Surgery VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2021.753405 DOI=10.3389/fsurg.2021.753405 ISSN=2296-875X