?url_ver=Z39.88-2004&rft_id=10.1016%2FS0168-3659(01)00343-1&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Bom%2C+D&rft.aulast=Bom&rft.aufirst=D&rft.issue=1-3&rft.volume=74&rft.date=6+July+2001&rft.issn=0168-3659&rft.atitle=The+highly+lipophilic+DNA+topoisomerase+I+inhibitor+DB-67+displays+elevated+lactone+levels+in+human+blood+and+potent+anticancer+activity&rft.title=Journal+of+Controlled+Release&rft.pages=325+-+333&rft.genre=article