The primer can provide {HEAD ~ an adhesive tie layer} between the surface of the implantable device and {TAIL ~ the reservoir region} 
between
The primer can provide { HEAD ~ an adhesive tie layer } between the surface of the implantable device and { TAIL ~ the reservoir region }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL