title: Letter: Heparin dosage and clotting time.
mesh_terms: D001780:Blood Coagulation Tests; D004211:Disseminated Intravascular Coagulation / Q000188:drug therapy*; D006493:Heparin / Q000008:administration & dosage* / Q000627:therapeutic use; D006801:Humans
chemical_list: D006493:Heparin