AUTHOR=Wang Xu , Hui Renjie , Chen Yun , Wang Wentao , Chen Yujiao , Gong Xiaohai , Jin Jian TITLE=Corrigendum: Discovery of Novel Doxorubicin Metabolites in MCF7 Doxorubicin-Resistant Cells JOURNAL=Frontiers in Pharmacology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2020.603491 DOI=10.3389/fphar.2020.603491 ISSN=1663-9812