title: A national standard for anticoagulant therapy. The Manchester comparative reagent.
mesh_terms: D000925:Anticoagulants; D003374:Coumarins; D006801:Humans; D007202:Indicators and Reagents; D011517:Prothrombin Time; D013925:Thromboplastin; D006113:United Kingdom
chemical_list: D000925:Anticoagulants; D003374:Coumarins; D007202:Indicators and Reagents; D013925:Thromboplastin