0-3D:0.8-1.5
4D-6M: 0.8- 1.4 
>=7M : 0.8-1.2 
0.88-1.20 :Normal of Homostasis 
2.0-3.0 :Oral anticoagulant therapy& Standard intensity warfarin therapeutic range. 
2.5-3.5 :Mechanical heart Valves& High intensity warfarin therapeutic range