Prevention of venous thromboembolism.
D000367:Age Factors; D000925:Anticoagulants / Q000627:therapeutic use; D006801:Humans; D007866:Leg / Q000098:blood supply; D008297:Male; D008875:Middle Aged; D010690:Phlebography; D011183:Postoperative Complications; D011655:Pulmonary Embolism / Q000517:prevention & control; D013848:Thigh / Q000098:blood supply; D013923:Thromboembolism / Q000517:prevention & control*; D013927:Thrombosis / Q000175:diagnosis / Q000000981:diagnostic imaging; D014463:Ultrasonography; D014680:Veins
D000925:Anticoagulants