AUTHOR=Moll Guido , Hoogduijn Martin J. , Ankrum James A. TITLE=Editorial: Safety, Efficacy and Mechanisms of Action of Mesenchymal Stem Cell Therapies JOURNAL=Frontiers in Immunology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2020.00243 DOI=10.3389/fimmu.2020.00243 ISSN=1664-3224