title: The clotting time--an enigma resolved.
mesh_terms: D001778:Blood Coagulation Disorders / Q000175:diagnosis; D001780:Blood Coagulation Tests / Q000379:methods / Q000592:standards*; D005168:Factor VII Deficiency / Q000175:diagnosis; D006467:Hemophilia A / Q000175:diagnosis; D006801:Humans; D011517:Prothrombin Time; D013921:Thrombocytopenia / Q000175:diagnosis; D013925:Thromboplastin; D014813:Vitamin K Deficiency / Q000097:blood
chemical_list: D013925:Thromboplastin