AUTHOR=Bornstein Joel C. TITLE=Serotonin in the Gut: What Does It Do? JOURNAL=Frontiers in Neuroscience VOLUME=6 YEAR=2012 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2012.00016 DOI=10.3389/fnins.2012.00016 ISSN=1662-453X