Acute venous thrombosis.
D000368:Aged; D000925:Anticoagulants / Q000627:therapeutic use; D005343:Fibrinolytic Agents / Q000627:therapeutic use; D006801:Humans; D007866:Leg / Q000098:blood supply*; D010690:Phlebography; D013924:Thrombophlebitis / Q000175:diagnosis* / Q000188:drug therapy; D014463:Ultrasonography
D000925:Anticoagulants; D005343:Fibrinolytic Agents