AUTHOR=Ciruela Francisco , Jacobson Kenneth A. TITLE=Editorial: Purinergic Pharmacology JOURNAL=Frontiers in Pharmacology VOLUME=10 YEAR=2019 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2019.00021 DOI=10.3389/fphar.2019.00021 ISSN=1663-9812