AUTHOR=Ntamo Yonela , Samodien Ebrahim , Burger Joleen , Muller Nolan , Muller Christo J. F. , Chellan Nireshni TITLE=Corrigendum: In vitro Characterization of Insulin–Producing β-Cell Spheroids JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2021.662574 DOI=10.3389/fcell.2021.662574 ISSN=2296-634X