The present invention provides a method of measuring {HEAD ~ the activity} of a substance to test how it inhibits or promotes the production of the blood coagulation factor {TAIL ~ XII} in an active form  
The present invention provides a method of measuring { HEAD ~ the activity } of a substance to test how it inhibits or promotes the production of the blood coagulation factor { TAIL ~ XII } in an active form
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH