AUTHOR=Narcisi Roberto , Farrell Eric TITLE=Editorial: Understanding and Modulating Bone and Cartilage Cell Fate for Regenerative Medicine JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2019.00008 DOI=10.3389/fbioe.2019.00008 ISSN=2296-4185