AUTHOR=Grande Rossella , Perez Perez Guillermo I. TITLE=Editorial: Keep Calm and Care for Your Microbiota: The Role of H. pylori and Microbiota in Gastric Diseases JOURNAL=Frontiers in Microbiology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2021.692472 DOI=10.3389/fmicb.2021.692472 ISSN=1664-302X