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