Anticoagulant therapy standards: results of two national surveys.
D001777:Blood Coagulation / Q000187:drug effects; D003374:Coumarins / Q000494:pharmacology / Q000592:standards*; D006801:Humans; D007202:Indicators and Reagents; D011517:Prothrombin Time; D013925:Thromboplastin / Q000592:standards
D003374:Coumarins; D007202:Indicators and Reagents; D013925:Thromboplastin