AUTHOR=Naro Fabio , Venturelli Massimo , Monaco Lucia , Toniolo Luana , Muti Ettore , Milanese Chiara , Zhao Jia , Richardson Russell S. , Schena Federico , Reggiani Carlo TITLE=Corrigendum: Skeletal Muscle Fiber Size and Gene Expression in the Oldest-Old With Differing Degrees of Mobility JOURNAL=Frontiers in Physiology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2020.00127 DOI=10.3389/fphys.2020.00127 ISSN=1664-042X