?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Antunes&rft.au=Antunes%2C+I.L.&rft.aufirst=I.L.&rft.degree=Doctoral&rft.inst=UCL+(University+College+London)&rft.tpages=208&rft.title=Role+and+specificity+of+regulatory+T+cells+during+retroviral+infection&rft.date=June+2009