AUTHOR=Lin Ka , Mumtaz Ayesha , Rahaman Mohammad Anisur , Mok Ka Ho TITLE=Corrigendum: Social Quarantine and Its Four Modes: Conceptional Exploration and the Theoretical Construction of the Policies Against COVID-19 JOURNAL=Frontiers in Public Health VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2021.793721 DOI=10.3389/fpubh.2021.793721 ISSN=2296-2565