?url_ver=Z39.88-2004&rft_id=10.4049%2Fjimmunol.0901070&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Howie&rft.aufirst=D.&rft.au=Howie%2C+D.&rft.title=Journal+of+Immunology&rft.issn=0022-1767&rft.volume=183&rft.atitle=MS4A4B+is+a+GITR-associated+membrane+adapter%2C+expressed+by+regulatory+T+cells%2C+which+modulates+T+cell+activation&rft.issue=7&rft.date=2009&rft.genre=article