title: A prospective study of the value of monitoring heparin treatment with the activated partial thromboplastin time.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001780:Blood Coagulation Tests; D005260:Female; D006493:Heparin / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011655:Pulmonary Embolism / Q000139:chemically induced / Q000188:drug therapy / Q000517:prevention & control; D013923:Thromboembolism / Q000188:drug therapy / Q000517:prevention & control*; D013924:Thrombophlebitis / Q000188:drug therapy / Q000517:prevention & control*; D013925:Thromboplastin
chemical_list: D006493:Heparin; D013925:Thromboplastin