?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Aldridge%2C+RW&rft.aufirst=RW&rft.aulast=Aldridge&rft.title=BMC+Public+Health&rft.pages=-&rft.issn=1471-2458&rft.atitle=Determining+a+cost+effective+intervention+response+to+HIV%2FAIDS+in+Peru&rft.volume=9&rft.date=18+September+2009&rft.genre=article