title: Inhibitor of blood clotting derived from prothrombin.
mesh_terms: D000818:Animals; D001777:Blood Coagulation / Q000502:physiology*; D002417:Cattle; D005337:Fibrin; D005340:Fibrinogen; D066298:In Vitro Techniques; D011516:Prothrombin / Q000032:analysis*; D013917:Thrombin / Q000037:antagonists & inhibitors*
chemical_list: D011516:Prothrombin; D005337:Fibrin; D005340:Fibrinogen; D013917:Thrombin