Then, the reaction is stopped and the blood coagulation factor {HEAD ~ XII} in {TAIL ~ an active form} produced in the above reaction is quantitatively determined 
Then , the reaction is stopped and the blood coagulation factor { HEAD ~ XII } in { TAIL ~ an active form } produced in the above reaction is quantitatively determined
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH