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