AUTHOR=Singamaneni Venugopal , Lone Bashir , Singh Jasvinder , Kumar Pankaj , Gairola Sumeet , Singh Shashank , Gupta Prasoon TITLE=Corrigendum: Coronarin K and L: Two Novel Labdane Diterpenes From Roscoea purpurea: An Ayurvedic Crude Drug JOURNAL=Frontiers in Chemistry VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2021.798461 DOI=10.3389/fchem.2021.798461 ISSN=2296-2646