AUTHOR=Ikeda-Ohtsubo Wakako , Brugman Sylvia , Warden Craig H. , Rebel Johanna M. J. , Folkerts Gert , Pieterse Corné M. J. TITLE=Corrigendum: How Can We Define “Optimal Microbiota?”: A Comparative Review of Structure and Functions of Microbiota of Animals, Fish, and Plants in Agriculture JOURNAL=Frontiers in Nutrition VOLUME=5 YEAR=2018 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2018.00113 DOI=10.3389/fnut.2018.00113 ISSN=2296-861X