AUTHOR=Peterson Darryl R. , Hawkins Richard A. , ViƱa Juan R. TITLE=Editorial: Organization and Functional Properties of the Blood-Brain Barrier JOURNAL=Frontiers in Physiology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2021.796030 DOI=10.3389/fphys.2021.796030 ISSN=1664-042X