?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Wallet%2C+Mark+A&rft.aulast=Wallet&rft.aufirst=Mark+A&rft.issue=1&rft.volume=205&rft.date=21+January+2008&rft.issn=1540-9538&rft.atitle=MerTK+is+required+for+apoptotic+cell-induced+T+cell+tolerance.&rft.title=The+Journal+of+experimental+medicine&rft.pages=219-32&rft.genre=article