title: Proposed specification for a reference thromboplastin preparation for the control of anticoagulant therapy using coumarin type drugs.
mesh_terms: D000818:Animals; D001681:Biological Assay; D001778:Blood Coagulation Disorders / Q000188:drug therapy; D001921:Brain / Q000187:drug effects; D002417:Cattle; D003374:Coumarins / Q000627:therapeutic use*; D005168:Factor VII Deficiency / Q000175:diagnosis; D006801:Humans; D007020:Hypoprothrombinemias / Q000175:diagnosis; D066298:In Vitro Techniques; D008722:Methods; D011517:Prothrombin Time / Q000592:standards*; D011817:Rabbits; D013925:Thromboplastin / Q000592:standards*
chemical_list: D003374:Coumarins; D013925:Thromboplastin