AUTHOR=Katoh Masuko , Katoh Masaru TITLE=Grand Challenges in Molecular Medicine for Disease Prevention and Treatment Through Cyclical Innovation JOURNAL=Frontiers in Molecular Medicine VOLUME=1 YEAR=2021 URL=https://www.frontiersin.org/journals/molecular-medicine/articles/10.3389/fmmed.2021.720577 DOI=10.3389/fmmed.2021.720577 ISSN=2674-0095