?url_ver=Z39.88-2004&rft_id=10.1021%2Fja0256212&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Liu%2C+X&rft.aulast=Liu&rft.aufirst=X&rft.issue=26&rft.volume=124&rft.date=3+July+2002&rft.issn=0002-7863&rft.atitle=A+versatile+prodrug+approach+for+liposomal+core-loading+of+water-insoluble+camptothecin+anticancer+drugs&rft.title=Journal+of+the+American+Chemical+Society&rft.pages=7650+-+7651&rft.genre=article