AUTHOR=Ibrahim Hany S. , Sippl Wolfgang TITLE=Editorial: Application of PROTACs as a Novel Strategy for Drug Discovery JOURNAL=Frontiers in Chemistry VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2021.740196 DOI=10.3389/fchem.2021.740196 ISSN=2296-2646