A specific system for he estimation of prothrombin activity.
D000818:Animals; D001466:Barium Sulfate; D001780:Blood Coagulation Tests; D005168:Factor VII Deficiency / Q000097:blood; D005170:Factor X; D006801:Humans; D008722:Methods; D010714:Phosphatidylethanolamines; D011516:Prothrombin / Q000032:analysis*; D012911:Snakes; D014688:Venoms
D010714:Phosphatidylethanolamines; D014688:Venoms; D001466:Barium Sulfate; D011516:Prothrombin; D005170:Factor X