The physician can also inject {HEAD ~ a medicament} directly into {TAIL ~ the bolus} with an injection needle  
directly into
The physician can also inject { HEAD ~ a medicament } directly into { TAIL ~ the bolus } with an injection needle
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH