AUTHOR=Wang Airong , Li Lingling , Li Mengya , Wang Shujuan , Wang Chong TITLE=Corrigendum: 7-Ethyl-10-Hydroxycamptothecin, A DNA Topoisomerase I Inhibitor, Performs BRD4 Inhibitory Activity and Inhibits Human Leukemic Cell Growth JOURNAL=Frontiers in Pharmacology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2021.757060 DOI=10.3389/fphar.2021.757060 ISSN=1663-9812