Mini-dose heparin.
D000990:Antithrombin III; D000991:Antithrombins; D002986:Clinical Trials as Topic; D005265:Femoral Neck Fractures / Q000601:surgery; D006493:Heparin / Q000008:administration & dosage*; D006615:Hip / Q000601:surgery; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control; D011655:Pulmonary Embolism / Q000517:prevention & control*; D013924:Thrombophlebitis / Q000097:blood / Q000517:prevention & control*
D000991:Antithrombins; D000990:Antithrombin III; D006493:Heparin