AUTHOR=Guan Lijun , Gao Yang , Li Jialei , Wang Kunlun , Zhang Zhihong , Yan Song , Ji Nina , Zhou Ye , Lu Shuwen TITLE=Corrigendum: Directed Evolution of Pseudomonas fluorescens Lipase Variants With Improved Thermostability Using Error-Prone PCR JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=8 YEAR=2020 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2020.602138 DOI=10.3389/fbioe.2020.602138 ISSN=2296-4185