title: Ultra-low dose intravenous heparin in the prevention of postoperative deep vein thrombosis.
mesh_terms: D000005:Abdomen / Q000601:surgery; D000328:Adult; D002986:Clinical Trials as Topic; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D005260:Female; D006493:Heparin / Q000627:therapeutic use*; D006801:Humans; D007263:Infusions, Parenteral; D008297:Male; D011183:Postoperative Complications / Q000517:prevention & control*; D011655:Pulmonary Embolism / Q000517:prevention & control; D011897:Random Allocation; D013924:Thrombophlebitis / Q000517:prevention & control*
chemical_list: D006493:Heparin