AUTHOR=Yao Yuanyong , Zhang Meng , He Laibing , Wang Yunyang , Chen Shixue TITLE=Corrigendum: Evaluation of General Synthesis Procedures for Bioflavonoid–Metal Complexes in Air-Saturated Alkaline Solutions JOURNAL=Frontiers in Chemistry VOLUME=8 YEAR=2020 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2020.594058 DOI=10.3389/fchem.2020.594058 ISSN=2296-2646