AUTHOR=Madeddu Paolo , Foldes Gabor TITLE=Editorial: Multicellularity in the Cardiovascular System JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=6 YEAR=2019 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2019.00002 DOI=10.3389/fcvm.2019.00002 ISSN=2297-055X