AUTHOR=Fortuna Ana , Schindowski Katharina , Sonvico Fabio TITLE=Editorial: Intranasal Drug Delivery: Challenges and Opportunities JOURNAL=Frontiers in Pharmacology VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2022.868986 DOI=10.3389/fphar.2022.868986 ISSN=1663-9812