Venous thromboembolism.
D000293:Adolescent; D000328:Adult; D000368:Aged; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D011877:Radionuclide Imaging; D013667:Technetium; D013923:Thromboembolism / Q000175:diagnosis / Q000517:prevention & control; D013924:Thrombophlebitis / Q000175:diagnosis / Q000517:prevention & control
D013667:Technetium; D006493:Heparin