AUTHOR=Myung Jihwan , Nakamura Takahiro J. , Jones Jeff R. , Silver Rae , Ono Daisuke TITLE=Editorial: Development of Circadian Clock Functions JOURNAL=Frontiers in Neuroscience VOLUME=15 YEAR=2021 URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2021.735007 DOI=10.3389/fnins.2021.735007 ISSN=1662-453X