Surgical prevention of pulmonary emboli.
D001769:Blood; D004509:Education, Nursing, Continuing; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control*; D011655:Pulmonary Embolism / Q000175:diagnosis / Q000517:prevention & control*; D014462:Ultrafiltration / Q000295:instrumentation*; D014682:Vena Cava, Inferior