{TAIL ~ Adjuvants} are substances that can be used to nonspecifically augment {HEAD ~ a specific immune response} 
{ TAIL ~ Adjuvants } are substances that can be used to nonspecifically augment { HEAD ~ a specific immune response }
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD