Such compositions can be used in {HEAD ~ a manner} similar to {TAIL ~ dust mite} extracts to treat or prevent allergic reactions to a dust mite allergen in a subject 
Such compositions can be used in { HEAD ~ a manner } similar to { TAIL ~ dust mite } extracts to treat or prevent allergic reactions to a dust mite allergen in a subject
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH