AUTHOR=Lei Mingxing , Lin Sung-Jan , Chuong Cheng-Ming TITLE=Editorial: Hair Follicle Stem Cell Regeneration in Aging JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2021.799268 DOI=10.3389/fcell.2021.799268 ISSN=2296-634X