Entrapped in {HEAD ~ the liposomes} is a topoisomerase I inhibitor or a topoisomerase I/II inhibitor at {TAIL ~ a concentration} of at least about 0.10 μmole drug per μmole lipid 
Entrapped in { HEAD ~ the liposomes } is a topoisomerase I inhibitor or a topoisomerase I / II inhibitor at { TAIL ~ a concentration } of at least about 0.10 μmole drug per μmole lipid
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH