title: Risk/benefit of heparin-dihydroergotamine thromboembolic prophylaxis.
mesh_terms: D004087:Dihydroergotamine / Q000008:administration & dosage* / Q000009:adverse effects; D004341:Drug Evaluation; D004359:Drug Therapy, Combination; D006493:Heparin / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D011655:Pulmonary Embolism / Q000517:prevention & control*; D012306:Risk; D014947:Wounds and Injuries / Q000150:complications
chemical_list: D004087:Dihydroergotamine; D006493:Heparin