AUTHOR=McGinty Joanna , Brittain Nicola , Kenna Tony J. TITLE=Looking Beyond Th17 Cells: A Role for Tr1 Cells in Ankylosing Spondylitis? JOURNAL=Frontiers in Immunology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2020.608900 DOI=10.3389/fimmu.2020.608900 ISSN=1664-3224