title: Control of heparin therapy with an activated partial thromboplastin time.
mesh_terms: D001777:Blood Coagulation / Q000187:drug effects*; D006493:Heparin / Q000097:blood / Q000494:pharmacology*; D006801:Humans; D007201:Indicator Dilution Techniques; D013925:Thromboplastin / Q000032:analysis*
chemical_list: D006493:Heparin; D013925:Thromboplastin