{TAIL ~ Said complexes} are particularly useful for delivery of a biologically active agent to {HEAD ~ the glial tissue} of the brain as well as to the cortical, cholinergic and adrenergic neurons 
{ TAIL ~ Said complexes } are particularly useful for delivery of a biologically active agent to { HEAD ~ the glial tissue } of the brain as well as to the cortical , cholinergic and adrenergic neurons
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH