AUTHOR=Gozzo Lucia , Longo Laura , Vitale Daniela Cristina , Drago Filippo TITLE=The Regulatory Challenges for Drug Repurposing During the Covid-19 Pandemic: The Italian Experience JOURNAL=Frontiers in Pharmacology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2020.588132 DOI=10.3389/fphar.2020.588132 ISSN=1663-9812