Accordingly, when {HEAD ~ the total amount} of {TAIL ~ the substance} liberated from the cells is measured, the amount of antigen or antibody in the sample can be determined from this total measured amount 
of
Accordingly , when { HEAD ~ the total amount } of { TAIL ~ the substance } liberated from the cells is measured , the amount of antigen or antibody in the sample can be determined from this total measured amount
OTH OTH OTH HEAD 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 OTH OTH OTH