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