Immunoassay which can be performed within a short period of {HEAD ~ time} and a reagent composition for {TAIL ~ such immunoassay} 
Immunoassay which can be performed within a short period of { HEAD ~ time } and a reagent composition for { TAIL ~ such immunoassay }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL