The vector is intended for the delivery of therapeutic agents into specific mammalian tissues, especially low molecular weight agents, in {HEAD ~ particular low molecular weight anti cancer drugs} into {TAIL ~ cancer tissues} 
into
The vector is intended for the delivery of therapeutic agents into specific mammalian tissues , especially low molecular weight agents , in { HEAD ~ particular low molecular weight anti cancer drugs } into { TAIL ~ cancer tissues }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL