AUTHOR=Kim Yumi , Kwon Sunki , Roh Yul TITLE=Corrigendum: Effect of Divalent Cations (Cu, Zn, Pb, Cd, and Sr) on Microbially Induced Calcium Carbonate Precipitation and Mineralogical Properties JOURNAL=Frontiers in Microbiology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2021.721478 DOI=10.3389/fmicb.2021.721478 ISSN=1664-302X