AUTHOR=Li Balun , Cheng Xuedi , Aierken Aili , Du Jiaxin , He Wenlai , Zhang Mengfei , Tan Ning , Kou Zheng , Peng Sha , Jia Wenwen , Tang Haiyang , Hua Jinlian TITLE=Corrigendum: Melatonin Promotes the Therapeutic Effect of Mesenchymal Stem Cells on Type 2 Diabetes Mellitus by Regulating TGF-β Pathway 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.2021.799571 DOI=10.3389/fcell.2021.799571 ISSN=2296-634X