AUTHOR=Chen Xiuli , Pei Zhou , Zhang Miaoying , Xu Zhenran , Zhao Zhuhui , Lu Wei , Chen Linqi , Luo Feihong , Chen Ting , Sun Chengjun TITLE=Corrigendum: Glycated Hemoglobin (HbA1c) Concentrations Among Children and Adolescents With Diabetes in Middle- and Low-Income Countries, 2010–2019: A Retrospective Chart Review and Systematic Review of Literature JOURNAL=Frontiers in Endocrinology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2021.714389 DOI=10.3389/fendo.2021.714389 ISSN=1664-2392