AUTHOR=Wang Fangfang , Mayca Pozo Franklin , Tian Danmei , Geng Xinran , Yao Xinsheng , Zhang Youwei , Tang Jinshan TITLE=Corrigendum: Shikonin Inhibits Cancer Through P21 Upregulation and Apoptosis Induction JOURNAL=Frontiers in Pharmacology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2020.01088 DOI=10.3389/fphar.2020.01088 ISSN=1663-9812