?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Hu%C3%A9%2C+S.&rft.aulast=Hu%C3%A9&rft.aufirst=S.&rft.date=22+March+2005&rft.pages=4425-4429&rft.atitle=Genetic+analysis+reveals+the+complex+structure+of+HIV-1+transmission+within+defined+risk+groups&rft.issn=1091-6490&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.volume=102&rft.issue=12&rft.genre=article