The reagent composition contains {TAIL ~ complement} and {HEAD ~ cells} which contain quantitatively determinable substance therein 
The reagent composition contains { TAIL ~ complement } and { HEAD ~ cells } which contain quantitatively determinable substance therein
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH