AUTHOR=Granucci Francesca TITLE=The Nature of Activatory and Tolerogenic Dendritic Cell-Derived Signal 2 JOURNAL=Frontiers in Immunology VOLUME=5 YEAR=2014 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2014.00042 DOI=10.3389/fimmu.2014.00042 ISSN=1664-3224