title: Prevention of fatal pulmonary thromboembolism by small dose heparin prophylaxis in acute hip fracture surgery.
mesh_terms: D000368:Aged; D005260:Female; D006493:Heparin / Q000008:administration & dosage*; D006620:Hip Fractures / Q000601:surgery*; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000517:prevention & control; D011655:Pulmonary Embolism / Q000517:prevention & control*
chemical_list: D006493:Heparin