When the amount of the antigen in the sample to be determined is great, {HEAD ~ the number} of {TAIL ~ cells} whose cell membranes are lysed is also great 
When the amount of the antigen in the sample to be determined is great , { HEAD ~ the number } of { TAIL ~ cells } whose cell membranes are lysed is also great
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH