In addition, {HEAD ~ a greater immune response}, as measured by antibody production, is achieved using {TAIL ~ a controlled release vaccine} 
is achieved using
In addition , { HEAD ~ a greater immune response } , as measured by antibody production , is achieved using { TAIL ~ a controlled release vaccine }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL