An activation reaction of the blood coagulation factor XII is initiated by adding a blood coagulation factor XII activator to {HEAD ~ an animal plasma} in {TAIL ~ the presence} of the tested substance 
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An activation reaction of the blood coagulation factor XII is initiated by adding a blood coagulation factor XII activator to { HEAD ~ an animal plasma } in { TAIL ~ the presence } of the tested substance
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH