Alternatively, {TAIL ~ the inactivated HIV particles} may be used to augment the immune response to {HEAD ~ HIV} in an infected individual 
Alternatively , { TAIL ~ the inactivated HIV particles } may be used to augment the immune response to { HEAD ~ HIV } in an infected individual
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH