AUTHOR=Pandol Stephen TITLE=The Future of Gastrointestinal Physiology: 2020 and Beyond JOURNAL=Frontiers in Physiology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2021.674951 DOI=10.3389/fphys.2021.674951 ISSN=1664-042X