AUTHOR=Peng Zeyan , Zhou Rui , Liu Dong , Cui Min , Yu Ke , Yang Hai , Li Ling , Liu Juan , Chen Yang , Hong Wenjuan , Huang Jie , Wang Congguo , Ma Jingjing , Zhou Huadong TITLE=Corrigendum: Association Between Metabolic Syndrome and Mild Parkinsonian Signs Progression in the Elderly JOURNAL=Frontiers in Aging Neuroscience VOLUME=13 YEAR=2021 URL=https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2021.790099 DOI=10.3389/fnagi.2021.790099 ISSN=1663-4365