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