title: New approaches for deep vein thrombosis occurring after surgery.
mesh_terms: D004087:Dihydroergotamine / Q000008:administration & dosage / Q000031:analogs & derivatives*; D004359:Drug Therapy, Combination; D006493:Heparin / Q000008:administration & dosage*; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control; D013924:Thrombophlebitis / Q000517:prevention & control*
chemical_list: D004087:Dihydroergotamine; D006493:Heparin