AUTHOR=Ataka Koji , Takahashi Ryuji , Li Jiang Bo , Iizuka Norio , Inui Akio TITLE=Editorial: Frailty and Herbal Medicines- From Molecular Mechanisms to Clinical Efficacy JOURNAL=Frontiers in Nutrition VOLUME=7 YEAR=2020 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2020.00041 DOI=10.3389/fnut.2020.00041 ISSN=2296-861X